Commentary Research on gene–environment interdependence: Honing the tools and examining the angles

The insightful overview by Sir Michael Rutter (this issue) on gene–environment interdependence comes about 10 years after the breakthrough Science publications on gene–environment interactions (G×E) involving the MAOA and 5-HTT genes by Caspi et al. (2002 Caspi, A., McClay, J., Moffitt, T. E., Mill, J., Martin, J.Craig, I. W. 2002. Role of genotype in the cycle of violence in maltreated children. Science, 297: 851–854. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 2003 Caspi, A., Sugden, K., Moffitt, T. E., Taylor, A., Craig, I. W.Harrington, H. 2003. Influence of life stress on depression: Moderation by a polymorphism in the 5-HTT gene. Science, 301: 386–389. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Since then, a field of research has burgeoned that has produced replications as well as intriguing new evidence of gene–environment interdependence. At the same time, however, the field has witnessed a growing scepticism about the relevance of studying gene–environment interactions and has seen replication failures (see Duncan & Keller, 2011 Duncan, L. E. and Keller, M. C. 2011. A critical review of the first 10 years of candidate gene-by-environment interaction research in psychiatry. American Journal of Psychiatry, 168: 1041–1049. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Risch et al., 2009 Risch, N., Herell, R., Lehner, T., Liang, K.-Y., Eaves, L.Hoh, J. 2009. Interaction between the serotonin transporter gene (5-HTTLPR), stressful life events, and risk of depression: A meta-analysis. Journal of the American Medical Association, 301: 2462–2471. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Against this backdrop, we comment and elaborate on several of the key issues raised by Rutter, and suggest some directions for future research on G×E. Specifically, we discuss (1) replication issues; (2) the crucial role of experiments in understanding gene–environment interdependence; (3) current unknowns with regard to differential susceptibility; and (4) clinical and practical implications of G×E research.     

A closer look at moral dilemmas: Latent dimensions of morality and the difference between trolley and footbridge dilemmas

Although a distinction between moral-personal and moral-impersonal dilemmas (Greene, Sommerville, Nystrom, Darley, & Cohen, 2001 Greene, J. D., Sommerville, R. B., Nystrom, L. E., Darley, J. M. and Cohen, J. D. 2001. An fMRI investigation of emotional engagement in moral judgement. Science, 293: 2105–2108. doi:10.1126/science.1062872.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) has been widely accepted as an explanation for a difference between the trolley and footbridge dilemmas (Thomson, 1985 Thomson, J. J. 1985. “The trolley problem”. In Ethics: Problems and principles, Edited by: Fischer, J. M. and Ravizza, M. Fort Worth, TX: Harcourt Brace Jovanovich.  [Google Scholar]), its psychometric properties remain a mystery. In this study 219 participants completed 62 moral dilemma tasks used in Greene et al. (2001 Greene, J. D., Sommerville, R. B., Nystrom, L. E., Darley, J. M. and Cohen, J. D. 2001. An fMRI investigation of emotional engagement in moral judgement. Science, 293: 2105–2108. doi:10.1126/science.1062872.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]), and the correlation structure among the dilemmas was analysed through factor analysis and structural equation modelling. Findings suggest that, first, moral-personal dilemmas are composed of one factor, indicating that the assumption in Greene et al. (2001 Greene, J. D., Sommerville, R. B., Nystrom, L. E., Darley, J. M. and Cohen, J. D. 2001. An fMRI investigation of emotional engagement in moral judgement. Science, 293: 2105–2108. doi:10.1126/science.1062872.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) was supported. Second, moral-impersonal dilemmas are explained by two factors that reflect procedural and consequential aspects of decision making. Third, the trolley and footbridge dilemmas fall under the same factor category; therefore the difference between the two dilemmas cannot be attributed to emotional involvement. Additionally, the results of the structural equation modelling suggest that they differ in the engagement of rational processing.     

Unmasking a shady mirror effect: Recognition of normal versus obscured faces

Hockley, Hemsworth, and Consoli (1999) Hockley, W. E., Hemsworth, D. E. and Consoli, A. 1999. Shades of the mirror effect: Recognition of faces with and without sunglasses. Memory & Cognition, 27: 128–138. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] found that following the study of normal faces, a recognition test of normal faces versus faces wearing sunglasses produced a mirror effect: The sunglasses manipulation decreased hit rates and increased false-alarm rates. The stimuli used by Hockley et al. (1999) Hockley, W. E., Hemsworth, D. E. and Consoli, A. 1999. Shades of the mirror effect: Recognition of faces with and without sunglasses. Memory & Cognition, 27: 128–138. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] consisted of separate poses of models wearing or not wearing sunglasses. In the current experiments, we separately manipulated same versus different depictions of individual faces and whether or not the faces were partially obscured. The results of a simulation and four experiments suggest that the test-based, mirror effect observed by Hockley et al. (1999) Hockley, W. E., Hemsworth, D. E. and Consoli, A. 1999. Shades of the mirror effect: Recognition of faces with and without sunglasses. Memory & Cognition, 27: 128–138. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] is actually two separable effects.     

Modality effects in memory for basic stimulus attributes: A temporal and nontemporal comparison

Previous research suggests that there are significant differences in the operation of reference memory for stimuli of different modalities, with visual temporal entries appearing to be more durable than auditory entries (Ogden, Wearden, & Jones, 2008 Ogden, R. S., Wearden, J. H. and Jones, L. A. 2008. The remembrance of times past: Interference in temporal reference memory. Journal of Experimental Psychology: Human Perception and Performance, 34: 1524–1544. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 2010). Ogden et al. (2008 Ogden, R. S., Wearden, J. H. and Jones, L. A. 2008. The remembrance of times past: Interference in temporal reference memory. Journal of Experimental Psychology: Human Perception and Performance, 34: 1524–1544. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 2010 Ogden, R. S., Wearden, J. H. and Jones, L. A. 2010. Are memories for duration modality specific?. Quarterly Journal of Experimental Psychology, 63: 65–80. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) demonstrated that when participants were required to store multiple auditory temporal standards over a period of delay there was significant systematic interference to the representation of the standard characterized by shifts in the location of peak responding. No such performance deterioration was observed when multiple visually presented durations were encoded and maintained. The current article explored whether this apparent modality-based difference in reference memory operation is unique to temporal stimuli or whether similar characteristics are also apparent when nontemporal stimuli are encoded and maintained. The modified temporal generalization method developed in Ogden et al. (2008) Ogden, R. S., Wearden, J. H. and Jones, L. A. 2008. The remembrance of times past: Interference in temporal reference memory. Journal of Experimental Psychology: Human Perception and Performance, 34: 1524–1544. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] was employed; however, standards and comparisons varied by pitch (auditory) and physical line length (visual) rather than duration. Pitch and line length generalization results indicated that increasing memory load led to more variable responding and reduced recognition of the standard; however, there was no systematic shift in the location of peak responding. Comparison of the results of this study with those of Ogden et al. (2008 Ogden, R. S., Wearden, J. H. and Jones, L. A. 2008. The remembrance of times past: Interference in temporal reference memory. Journal of Experimental Psychology: Human Perception and Performance, 34: 1524–1544. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar], 2010 Ogden, R. S., Wearden, J. H. and Jones, L. A. 2010. Are memories for duration modality specific?. Quarterly Journal of Experimental Psychology, 63: 65–80. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) suggests that although performance deterioration as a consequence of increases in memory load is common to auditory temporal and nontemporal stimuli and visual nontemporal stimuli, systematic interference is unique to auditory temporal processing.     

Why are there limits on theory of mind use? Evidence from adults' ability to follow instructions from an ignorant speaker

Keysar et al. (Keysar, Barr, Balin, & Brauner, 2000 Keysar, B., Barr, D. J., Balin, J. A. and Brauner, J. S. 2000. Taking perspective in conversation: The role of mutual knowledge in comprehension. Psychological Sciences, 11: 32–38. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Keysar, Lin, & Barr, 2003 Keysar, B., Lin, S. H. and Barr, D. J. 2003. Limits on theory of mind use in adults. Cognition, 89(1): 25–41. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) report that adults frequently failed to use their conceptual competence for theory of mind (ToM) in an online communication game where they needed to take account of a speaker's perspective. The current research reports 3 experiments investigating the cognitive processes contributing to adults' errors. In Experiments 1 and 2 the frequency of adults' failure to use ToM was unaffected by perspective switching. In Experiment 3 adults made more errors when interpreting instructions according to the speaker's perspective than according to an arbitrary rule. We suggest that adults are efficient at switching perspectives, but that actually using what another person knows to interpret what they say is relatively inefficient, giving rise to egocentric errors during communication.     

Priming the trait category “hostility”: The moderating role of trait anxiety

Recent studies on affective priming with the naming task have revealed an influence of trait anxiety on the direction of affective priming effects (e.g., Berner & Maier, 2004 Berner, M. P. and Maier, M. A. 2004. The direction of affective priming as a function of trait anxiety when naming target words with regular and irregular pronunciation. Experimental Psychology, 51: 180–190. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). This moderating role of trait anxiety was further investigated in a study employing a conceptual priming task. After masked presentation of either hostile or neutral primes, participants performed a person judgment task. As expected, the direction of the hostility rating difference score, defined as the difference between hostility ratings of a target person in the hostility priming condition and in the neutral priming condition, changed from positive to negative with increasing levels of self-reported trait anxiety. The findings are interpreted in terms of salience-dependent overcorrection processes (Glaser & Banaji, 1999 Glaser, J. and Banaji, M. R. 1999. When fair is foul and foul is fair: Reverse priming in automatic evaluation. Journal of Personality and Social Psychology, 77: 669–687. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Implications for our understanding of the cognitive functioning in high trait anxiety are discussed.     

The own-age face recognition bias in children and adults

Children recognize children's faces more accurately than adult faces, and adults recognize adult faces more accurately than children's faces (e.g., Anastasi & Rhodes, 2005 Anastasi, J. S. and Rhodes, M. G. 2005. An own-age bias in face recognition for children and older adults. Psychonomic Bulletin and Review, 12: 1043–1047. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). This is the own-age bias. Research has shown that this bias is at least partially based on experience since trainee teachers show less of an own-age bias than do other adults (Harrison & Hole, 2009 Harrison, V. and Hole, G. J. 2009. Evidence for a contact-based explanation of the own-age bias in face recognition. Psychonomic Bulletin & Review, 16: 264–269. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). The present research tested the own-age bias in three groups of children (age 4–6, 7–9, 10–12 years) and a group of adults in the recognition of three age groups of faces (age 7–9, 20–22, and 65–90 years). Results showed an own-age bias for 7- to 9-year-old children and adults. Specifically, children could recognize faces more accurately if they were less than two years different from their own age than if they were more than two years older or younger. These results are discussed in terms of short-term experience with faces creating biases, and this rapidly changes with age.     

Intentionality Attributions About Perfect and Imperfect Duty Violations

Abstract

Intentionality attributions were explored by drawing on the distinction between perfect and imperfect moral duties. Previous research has shown that perfect duty violations carry greater attributional weight than imperfect duty violations (Trafimow & Trafimow, 1999 Trafimow, D. and Trafimow, S. 1999. Mapping imperfect and perfect duties on to hierarchically and partially restrictive trait dimensions. Personality and Social Psychology Bulletin, 25: 686–695. [Crossref], [Web of Science ®] , [Google Scholar]; Trafimow, Bromgard, Finlay, & Ketelaar, 2005 Trafimow, D., Bromgard, I. K., Finlay, K. A. and Ketelaar, T. 2005. The role of affect in determining the attributional weight of immoral behaviors. Personality and Social Psychology Bulletin, 31: 935–948. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). In Studies 1 and 2, the distinction between perfect and imperfect duties was replicated with intentionality judgments, and perfect duty violations received higher intentionality attributions than imperfect duty violations. In Study 3 this effect was reversed by manipulating information about an agent's mental intentions or plans to perform a behavior. That is, participants attributed less intentionality to perfect duty violations compared to imperfect duty violations when a mental intention to perform the behavior was absent.     

The effects of precedence on Navon-induced processing bias in face recognition

Macrae and Lewis (2002) Macrae, C. N. and Lewis, H. L. 2002. Do I know you? Processing orientation and face recognition. Psychological Science, 13: 194–196. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] showed that repeated reporting of the global dimension of Navon stimuli improved performance in a subsequent face identification task, whilst reporting the features of the Navon stimuli impaired performance. Using a face composite task, which is assumed to require featural processing, Weston and Perfect (2005) Weston, N. J. and Perfect, T. J. 2005. The effects of processing bias on the composite effect. /precode>. Psychonomic Bulletin and Review, 12: 1038–1042. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] showed the complementary pattern: Featural responding to Navon letters speeded performance. However, both studies used Navon stimuli with global precedence, in which the overall configuration is easier to report than the features. Here we replicate the two studies above, whilst manipulating the precedence (global or featural) of the letter stimuli in the orientation task. Both studies replicated the previously reported findings with global precedence stimuli, but showed the reverse pattern with local precedence stimuli. These data raise important questions as to what is transferred between the Navon orientation task and the face-processing tasks that follow.     

A sentence completion procedure as an alternative to the Autobiographical Memory Test for assessing overgeneral memory in non-clinical populations

Overgeneral memory (OGM) has been proposed as a vulnerability factor for depression (Williams et al., 2007 Williams , J. M. G. , Barnhofer , T. , Crane , C. , Hermans , D. , Raes , F. , Watkins , E. , & Dalgleish , T. ( 2007 ). Autobiographical memory specificity and emotional disorder . Psychological Bulletin , 133 , 122 – 148 .[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) or depressive reactivity to stressful life-events (e.g., Gibbs & Rude, 2004 Gibbs, B. R. and Rude, S. S. 2004. Overgeneral autobiographical memory as depression vulnerability. Cognitive Therapy and Research, 28: 511–526. [Crossref], [Web of Science ®] , [Google Scholar]). Traditionally, a cue word procedure known as the Autobiographical Memory Test (AMT; Williams & Broadbent, 1986 Williams, J. M. G. and Broadbent, K. 1986. Autobiographical memory in suicide attempters. Journal of Abnormal Psychology, 95: 144–149. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) is used to assess OGM. Although frequently and validly used in clinical populations, there is evidence suggesting that the AMT is insufficiently sensitive to measure OGM in non-clinical groups. Study 1 evaluated the usefulness of a sentence completion method to assess OGM in non-clinical groups, as an alternative to the AMT. Participants were 197 students who completed the AMT, the Sentence Completion for Events from the Past Test (SCEPT), a depression measure, and visual analogue scales assessing ruminative thinking. Results showed that the mean proportion of overgeneral responses was markedly higher for the SCEPT than for the standard AMT. Also, overgeneral responding on the SCEPT was positively associated to depression scores and depressive rumination scores, whereas overgeneral responding on the AMT was not. Results suggest that the SCEPT, relative to the AMT, is a more sensitive instrument to measure OGM, at least in non-clinical populations. Study 2 further showed that this enhanced sensitivity is most likely due to the omission of the instruction to be specific rather than to the SCEPT's sentence completion format (as opposed to free recall to cue words).     

Are Preferences in Emotional Processing Affected by Distraction? Examining the Age-Related Positivity Effect in Visual Fixation within a Dual-Task Paradigm

ABSTRACT

Recent research has suggested that age-related positivity effects are eliminated under conditions of dual-task load (Knight et al., 2007 Knight, M., Seymour, T. L., Gaunt, J. T., Baker, C., Nesmith, K. and Mather, M. 2007. Aging and goal directed emotional attention: Distraction reverses emotional biases. Emotion, 7: 705–714. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar], Emotion, 7, 705; Mather & Knight, 2005 Mather, M. and Knight, M. 2005. Goal directed memory: The role of cognitive control in older adults' emotional memory. Psychology and Aging, 20: 554–570. [PubMed], [Web of Science ®] , [Google Scholar], Psychology and Aging, 20, 554), because the cognitive control resources necessary to enact such preferences are not available when individuals are distracted by competing information. We further examined how older adults' emotional information processing preferences are affected by distracting information by utilizing a within-subjects dual-task measure. Younger and older adults viewed a series of positive, negative, and neutral images both in conditions of full and divided attention. Fixation preferences to valenced images were assessed through eye tracking. Regardless of whether images were viewed in full or divided attention conditions, older adults demonstrated a preference in their fixation for positive and neutral in comparison to negative images. These results provide evidence that older adults' positive fixation preferences may not always necessitate full, cognitive control.     

“I'm Sorry,Please Don't Hurt Me”: Effectiveness of Apologies on Aggression Control

ABSTRACT

The author attempted to replicate Ohbuchi, Kameda, and Agarie's (1989 Ohbuchi, K., Kameda, M and Agarie, N. 1989. Apology as aggression control: Its role in mediating appraisal of and response to harm. Journal of Personality and Social Psychology, 56: 219–227. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) study which found that giving an apology, with or without harm removal, reduced aggressive responses among a sample of Japanese college women. The author found similiar results with a U.S. sample of college women. The results provide evidence for cross-cultural similiarity in the effectiveness of apologies in reducing aggressive responses.     

The effects of source trustworthiness and inference type on human belief revision

We investigated whether people revise their beliefs as a function of inference type or source trustworthiness. By doing so we aimed to find out if belief revision is better explained by mental model theory (Johnson-Laird & Byrne, 2002 Johnson-Laird, P. N. and Byrne, R. M. J. 2002. Conditionals: A theory of meaning, pragmatics, and inference. Psychological Review, 109: 211–228. [Crossref], [Web of Science ®] , [Google Scholar]) or by a conditional probability view (Evans, Handley, & Over, 2003 Over, D. E. and Evans, J. St. B. T. 2003. The probability of conditionals: The psychological evidence. Mind & Language, 18: 340–358. [Crossref], [Web of Science ®] , [Google Scholar]; Oaksford & Chater, 2001 Oaksford, M. and Chater, N. 2001. The probabilistic approach to human reasoning. Trends in Cognitive Science, 5: 349–357. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). We used modified modes ponens (MP) and modus tollens (MT) problems in which the first two premises were uttered by persons with varying degrees of trustworthiness. A third statement was presented as a fact and established inconsistency in the set of propositions. The participants' task was to indicate which of the first two premises they believed more after receiving the fact. We found that the belief in the conditional premise dropped significantly when this premise was stated by a low- rather than a high-trustworthy source. Moreover we found that the conditional premise was believed more in MT than in MP problems. Both findings are best explained by the conditional probability hypothesis (e.g., Evans et al., 2003 Evans, J. St. B. T., Handley, S. J. and Over, D. E. 2003. Conditionals and conditional probability. Journal of Experimental Psychology: Learning, Memory, and Cognition, 29, : 321–335. [Crossref] , [Google Scholar]).     

Controlling reactive aggression through cognitive evaluation of proactive aggression cues

The authors investigated how the relationship between the acts of proactive and reactive aggression was moderated by the individual differences in cognitive regulation of emotion. An aggression paradigm, a electrocardiogram recording, a cognitive assessment battery, and a short form IQ test were completed by 109 children, aged 8 to 13 years (Juujärvi, Kaartinen, Laitinen, Vanninen, & Pulkkinen, 2006 Juujärvi, P., Kaartinen, J., Laitinen, T., Vanninen, E. and Pulkkinen, L. 2006. Effects of physical provocations on heart rate reactivity, and reactive aggression in children. Aggressive Behavior, 32: 99–109. [Crossref], [Web of Science ®] , [Google Scholar]; Juujärvi, Kooistra, Kaartinen, & Pulkkinen, 2001 Juujärvi, P., Kooistra, L., Kaartinen, J. and Pulkkinen, L. 2001. An aggression machine: V. Determinants of reactive aggression revisited. Aggressive Behavior, 27: 430–445. [Crossref], [Web of Science ®] , [Google Scholar]; Lehto, Juujärvi, Kooistra, & Pulkkinen, 2003 Lehto, J. E., Juujärvi, P., Kooistra, L. and Pulkkinen, L. 2003. Dimensions of executive functioning: Evidence from children. British Journal of Developmental Psychology, 21: 59–80. [Crossref], [Web of Science ®] , [Google Scholar]). The less the children subdued the intensity of their defence to the attacks in the aggression paradigm, the poorer they performed in the cognitive assessment battery tasks measuring Working memory capacity and in the task assessing crystallised intelligence. The mean cardiovascular reactivity during the aggression paradigm was neither associated with the performances in either the cognitive assessment battery nor the intelligence tasks. Both information processing and knowledge dimensions of cognition contributed to regulation of emotion, but the respective effects of the processes cannot be inferred from the mean cardiovascular reactivity.     

Shared structuring resources across domains: double task effects from linguistic processing on the structural integration of pitch sequences

Many studies have reported evidence suggesting that resources involved in linguistic structural processing might be domain-general by demonstrating interference from simultaneously presented non-linguistic stimuli on the processing of sentences (Slevc, Rosenberg, & Patel, 2009 Slevc, L. R., Rosenberg, J. C., & Patel, A. D. (2009). Making psycholinguistics musical: Self-paced reading time evidence for shared processing of linguistic and musical syntax. Psychonomic Bulletin & Review, 16(2), 374–381. doi:10.3758/16.2.374[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). However, the complexity of the analysed linguistic processes often precludes the interpretation of such interference as being based on structural—rather than more general—processing resources (Perruchet & Poulin-Charronnat, 2013 Perruchet, P., & Poulin-Charronnat, B. (2013). Challenging prior evidence for a shared syntactic processor for language and music. Psychonomic Bulletin & Review, 20(2), 310–317. doi:10.3758/s13423-012-0344-5[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). We therefore used linguistic structure as a source of interference for another structural processing task, by asking participants to read sentences while processing experimentally manipulated pitch sequences. Half of the sentences contained a segment with either an “out-of-context” sentential violation or a “garden path” unexpectancy. Furthermore, the pitch sequences contained a cluster shift, which did or did not align with the sentential unexpectancies. A two-tone recognition task followed each pitch sequence, providing an index of the strength with which this structural boundary was processed. When a “garden path” unexpectancy (requiring structural reintegration) accompanied the cluster shift, the structural boundary induced by this shift was processed more shallowly. No such effect occurred with non-reintegratable “out-of-context” sentential violations. Furthermore, the discussed interference effect can be isolated from general pitch recognition performance, supporting the interpretation of such interference as being based on overlapping structural processing resources (Kljajevic, 2010 Kljajevic, V. (2010). Is syntactic working memory language specific? Psihologija, 43(1), 85–101. doi:10.2298/PSI1001085K[Crossref], [Web of Science ®] , [Google Scholar]; Patel, 2003 Patel, A. D. (2003). Language, music, syntax and the brain. Nature Neuroscience, 6(7), 674–681. doi: 10.1038/nn1082[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]).     

Occupational stress and mental well-being in a cohort of Black South African teachers

This study explored levels of occupational stress and mental well-being of a cohort of Black South African teachers. 200 secondary school teachers completed the Teacher Stress Inventory (TSI: Boyle, Borg, Falzon, & Baglion, 1995), General Health Questionnaire (GHQ-28: Goldberg & Hillier, 1979 Goldberg, D. P., & Hillier, V. F. (1979). A scaled version of the General Health Questionnaire. Psychological Medicine, 9, 139–145. doi: 10.1017/S0033291700021644[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) and Mental Health Continuum-Short Form (MHC-SF: Keyes, 2006 Keyes, C. L. M. (2006). Mental health in adolescence: Is America's youth flourishing? American Journal of Orthopsychiatry, 76(3), 395–402. doi: 10.1037/0002-9432.76.3.395[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Correlations and Structural Equation Modelling (SEM) were used to determine the levels of occupational stress and well-being of participants, and to establish the relation between these variables. A significant majority of the teachers reported high levels of mental health (flourishing) despite high levels of teacher stress. These results show teachers’ ability to withstand and cope with stress whilst maintaining their mental health. This suggests the presence of protective factors that mediate the effect of work-related stressors and, in so doing, contribute to the teachers’ levels of resilience.     

Is There a Home Choke in Decisive Playoff Basketball Games?

Previous studies (Baumeister & Steinhilber, 1984 Baumeister, R. F. 1984. Choking under pressure: Self-consciousness and paradoxical effects of incentives on skillful performance. Journal of Personality and Social Psychology, 46: 610–620. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Schlenker, Phillips, Boniecki, & Schlenker (1995a) Schlenker, B. R., Phillips, S. T., Boniecki, K. A. and Schlenker, D. R. 1995a. Championship pressures: Choking or triumphing in one's own territory?. Journal of Personality and Social Psychology, 68: 632–643. [Crossref], [Web of Science ®] , [Google Scholar] have found conflicting results regarding whether home teams have an advantage or not in athletic performance. We conducted two studies to explore the effects of basketball teams playing at home in playoff competition. We archived more than fifty years of National Basketball Association (NBA) playoff data, extending previous research to include a longer range of time and broader sample of NBA playoff games. We also extended previous studies by archiving a unique sample of college playoff basketball competition. Results are discussed in terms of both theoretical and applied implications. In sum, we found virtually no evidence of a home choke and strong evidence in favor of a home court advantage.     

Feature binding and attention in working memory: A resolution of previous contradictory findings

We aimed to resolve an apparent contradiction between previous experiments from different laboratories, using dual-task methodology to compare effects of a concurrent executive load on immediate recognition memory for colours or shapes of items or their colour–shape combinations. Results of two experiments confirmed previous evidence that an irrelevant attentional load interferes equally with memory for features and memory for feature bindings. Detailed analyses suggested that previous contradictory evidence arose from limitations in the way recognition memory was measured. The present findings are inconsistent with an earlier suggestion that feature binding takes place within a multimodal episodic buffer Baddeley, (2000 Baddeley, A. D. 2000. The episodic buffer: A new component of working memory?. Trends in Cognitive Sciences, 4(11): 417–423. (doi:10.1016/S1364-6613(00)01538-2)[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) and support a subsequent account in which binding takes place automatically prior to information entering the episodic buffer Baddeley, Allen, & Hitch, (2011 Baddeley, A. D., Allen, R. J. and Hitch, G. J. 2011. Binding in visual working memory: The role of the episodic buffer. Neuropsychologia, 49: 1393–1400. (doi:10.1016/j.neuropsychologia.2010.12.042)[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Methodologically, the results suggest that different measures of recognition memory performance (A′, d′, corrected recognition) give a converging picture of main effects, but are less consistent in detecting interactions. We suggest that this limitation on the reliability of measuring recognition should be taken into account in future research so as to avoid problems of replication that turn out to be more apparent than real.     

Reducing Muslim/Arab Stereotypes Through Evaluative Conditioning

ABSTRACT

This study replicated and extended Olson and Fazio (2006 Olson, M. A. and Fazio, R. H. 2006. Reducing automatically activated racial prejudice through implicit evaluative conditioning. Personality and Social Psychology Bulletin, 32: 421–433. doi:10.1177/0146167205284004[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) by testing whether evaluative conditioning is a means to reduce negative stereotypes about Muslim and other Arab persons. Specifically, evaluative conditioning was hypothesized to lower implicit biases against Muslim and Arab persons. The FreeIAT was used to measure implicit biases. Participants in the evaluative conditioning group showed a significant lowering in implicit biases. Explicit measures of bias were not affected by the conditioning procedure.     

Analysing repeated measures data in cognitive research: A comment on regression coefficient analyses

Cognitive psychologists often make use of regression coefficient analyses to analyse repeated measures data, as proposed by Lorch and Myers (1990 Lorch, R. F. and Myers, J. L. 1990. Regression analyses of repeated measures data in cognitive research. Journal of Experimental Psychology: Learning, Memory, and Cognition, 16: 149–157. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). In this paper, it is demonstrated that in case this procedure is applicable and the data are balanced, using hierarchical linear models gives the same results after one single analysis. In addition, the hierarchical linear model approach is more flexible and has a broader applicability, for example including nonbalanced designs. Despite the relative complexity of the approach, we therefore recommend cognitive researchers considering the use of these models to analyse repeated measures data.