New objects do not capture attention without a top-down setting: Evidence from an inattentional blindness task

Past studies have suggested that a new object can involuntarily capture attention in a visual search task (Yantis & Jonides, 1984 Yantis, S. and Jonides, J. 1984. Abrupt visual onsets and selective attention: Evidence from visual search. Journal of Experimental Psychology: Human Perception and Performance, 10: 601–621. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). However, trials in these experiments usually begin with abrupt onsets that are considered to signal new objects; thus, there may be a bias toward paying attention to new objects. We examine whether new objects can still capture attention when this bias is excluded, using an inattentional blindness task. Our results showed that when the trials began with new objects, a new object captured attention. When new objects were totally irrelevant and all top-down settings for new objects were prevented, a new object did not capture attention. Our findings argue against the view that new objects capture attention in a purely stimulus-driven fashion.     

Seeing Where the Stone Is Thrown by Observing a Point-Light Thrower: Perceiving the Effect of Action Is Enabled by Information,Not Motor Experience

People are very adept at perceiving biological motion (e.g., Johansson, 1973 Johansson, G. (1973). Visual perception of biological motion and a model for its analysis. Perception & Psychophysics, 14(2), 201–211.[Crossref], [Web of Science ®] , [Google Scholar]). This ability has been an essential life skill to members of this social species. The human niche during the ice age was socially coordinated hunting for big game. Being able to judge the location targeted by the throw of a conspecific would be a valuable perceptual ability that we now study to investigate 2 competing theories of biological motion perception: Common Coding (CC; Prinz, 1997 Prinz, W. (1997). Perception and action planning. European Journal of Cognitive Psychology, 9(2), 129–154.[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) and Kinematic Specification of Dynamics (KSD; Runeson & Frykholm, 1983 Runeson, S., & Frykholm, G. (1983). Kinematic specification of dynamics as an informational bias for person-and-action perception: Expectation, gender recognition, and deceptive intent. Journal of Experimental Psychology: General, 112, 585–615.[Crossref], [Web of Science ®] , [Google Scholar]). The 2 theories diverge in attributing perceptual ability to either motor or visual experience, respectively. To test predictions of the CC theory, we performed 3 experiments to manipulate observers' specific motor experience while they judged the targeted location of throwing by watching point-light displays. In Experiment 1, we tested whether the identity of the thrower in the display mattered. In Experiment 2, we tested whether the motor expertise of the observer mattered. In Experiment 3, we tested whether the gender/style of throwing demonstrated by the point-light thrower mattered. The combined results failed to support CC theory, suggesting that motor experience is not required for the perception of action. Because all participants judged the target location of throwing quite well, KSD theory suggests that the kinematic information available in the displays may have enabled the perception. We performed Experiment 4 to analyze the information. We found that the judgment pattern exhibited by the observers in both Experiments 1 and 2 was well predicted by the KSD theory. Thus, we concluded that the perception of biological motion is enabled by visual information and improved by visual experience.     

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]).     

Situating Coordination and Cooperation Between Ecological and Social Psychology

The major thrust of this analysis is to demonstrate the value of making ecological psychology more social while recognizing that for this to occur, social psychology must become more ecological in the sense that its key concepts must be treated in an embodied manner. I elaborate these propositions by focusing on establishing differences between coordination and cooperation. I then explore a range of relationships between them from a social psychological perspective. To accomplish this integration, which uses the commitment to reciprocity as a joint organizing principle, I use three complementary models—dynamical systems, effectivities-affordances, and a role-rule model of social commitment. Key aspects of the analysis involve (1) elaborating the meaning of Turvey's (1990) Turvey, M. T. 1990. Coordination. American Psychologist, 45: 938–954. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] proper-relations view of coordination and (2) demonstrating the particular relevance of roles and trust as unifying concepts. From this perspective, coordinations occur between roles, rather than individuals, at the level of team play. Team play, in turn, is shown to depend on trust. And trust, in turn, is related to perceptions of dependability, thereby illustrating a critical intersection of ecological and social psychology.     

Assumptive Worldviews and Religious Coping With Bereavement and Type 2 Diabetes

This study explored the effects of deferring and self-directed religious coping on the assumptive worldviews of women following the death of a child, the death of another friend or family member, or diagnosis with type 2 diabetes mellitus (n = 284). Participants completed the World Assumptions Scale (Janoff-Bulman, 1989 Janoff-Bulman, R. 1989. Assumptive worlds and the stress of traumatic events: Application of the schema construct. Social Cognition, 7: 113–136. [Crossref], [Web of Science ®] , [Google Scholar]), the Religious Problem-Solving Scales (Pargament et al., 1988 Pargament, K. I., Kennell, J., Hathaway, W., Grevengoed, N., Newman, J. and Jones, W. 1988. Religion and the problem-solving process: Three styles of coping. Journal for the Scientific Study of Religion, 27: 90–104. [Crossref], [Web of Science ®] , [Google Scholar]), and the Deistic and Supportive but Nonintervening God Scale (Phillips, Pargament, Quinten, & Crossley, 2004 Phillips, R. E., Pargament, K. I., Quinten, K. L. and Crossley, C. 2004. Self-directing religious coping: A deistic God, abandoning God, or no God at all?. Journal for the Scientific Study of Religion, 43: 409–418. [Crossref], [Web of Science ®] , [Google Scholar]). Women who had lost a child saw the world as least meaningful, followed by women otherwise bereaved, followed by women diagnosed with diabetes. Different religious coping styles offered different advantages in coping with these stressors. Across groups, deferring coping was associated with greater world meaning, whereas self-directed coping was associated with greater self-worth. The findings are discussed in the context of previous research finding inconsistent relationships between deferring and self-directed religious coping styles and adjustment.     

Failure to Mentalize Self and Masochistic Functioning

Mentalization includes the ability to apprehend and reflect upon one's subjective state, as well as an appreciation of one's agency (Fonagy & Target, 2006 Fonagy, P. and Target, M. 2006. The mentalization-focused approach to self pathology. Journal of Personality Disorders, 20(6): 544–576. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Masochism is a character pattern that is traditionally defined as pleasure in pain or suffering (Million, 1996 Million, T. M. 1996. Disorders of personality: DSM-IV and beyond , 2nd, New York: John Wiley and Sons.  [Google Scholar]). In some cases the etiology of this character pattern may mirror failures on the part of the caregiving surround that contribute to deficits in the ability to mentalize self (Fonagy, Gergely, & Target, 2007 Fonagy, P., Gergely, G. and Target, M. 2007. The parent-infant dyad and the construction of the subjective self. Journal of Child Psychology and Psychiatry, 48(3/4): 288–328. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Benjamin, 1988 Benjamin, J. 1988. The bonds of love: Psychoanalysis, feminism, and the problem of domination, New York: Pantheon Books.  [Google Scholar]). When this occurs masochism may be more profitably understood as an inability to register pain, rather than pleasure in pain. A case example demonstrates that when a deficit in mentalization underlies masochistic functioning, treatment may include interventions aimed at helping the patient improve the ability to reflect upon his or her mental state, especially negative affect such as pain and anger, and connect to a sense of agency.     

Preschool Children's Multimodal Word Learning

Two studies used a new paradigm to examine preschool children's (i.e., 2-, 3-, 4-, and 5-year-olds) word learning across multiple sense modalities. In Study 1 (n = 60), children heard a word for an object that they touched but did not see, while word learning was examined using objects that were seen but not touched. In Study 2 (n = 60), children heard a word for an object that they saw but did not touch, while word learning was examined using objects that were touched but not seen. Findings from both studies revealed that children were able to learn words by coordinating information across multiple sense modalities and that word learning improved with age. These findings are discussed in terms of E. J. Gibson's differentiation theory (1969 Gibson , E. J. ( 1969 ). Principles of perceptual learning and development . Englewood Cliffs , NJ : Prentice Hall . [Google Scholar], 1988 Gibson , E. J. ( 1988 ). Exploratory behavior in the development of perceiving, acting, and the acquiring of knowledge . Annual Review of Psychology , 39 , 1 – 41 .[Crossref], [Web of Science ®] , [Google Scholar]).     

Inter-word eye behaviour during reading is not invariant to character size: Evidence against systematic saccadic range error in reading

The present study re-investigated the effect of character size on eye behaviour during reading, in order to test McConkie, Kerr, Reddix, and Zola's (1988 McConkie, G. W., Kerr, P. W., Reddix, M. D., & Zola, D. (1988). Eye movement control during reading: I. The location of initial eye fixations on words. Vision Research, 28(10), 1107–1118. doi:10.1016/0042-6989(88)90137-X[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) Saccadic Range Error (SRE) hypothesis. This assumes that saccades are biased to move the eyes a constant, optimal distance in the task (i.e., range error), while aiming at the centre of peripherally selected target words. Results showed in contradiction with this hypothesis, (1) that the linear relationship between the eye launch site and the mean landing sites in words is not invariant to character size, and (2) that the optimal launch-site distance to the centre of words varies depending on the spatial extent of the words, and differs from the mean length of saccades in the task. We propose an alternative, Center-of-Gravity hypothesis, which a priori accounts for the launch-site effect and its variations with character size, and suggests that research in reading may benefit from reconsidering the role of character size.     

The Friends and Family Interview: Measurement invariance across Belgium and Romania

The Friends and Family Interview (FFI; Steele & Steele, 2005 Steele, H. and Steele, M. 2005. The construct of coherence as an indicator of attachment security in middle childhood: The Friends and Family Interview, New York, NY: Guilford Press.  [Google Scholar]), a semi-structured interview assessing attachment representations, is used in the context of an international research project. In the current study, the first step in the validation process of the FFI was to check whether this instrument measures coherence in the same way across countries. Coherence in attachment narratives is a central marker of secure and organized attachment representations in childhood and adulthood. Analysis were conducted on the data from Belgian (n = 35) and Romanian (n = 43) adopted adolescents and revealed that the FFI coherence is similar across the two samples. Correlations between coherence and attachment categories were also computed, confirming the relation between both these variables. Empirical implications of these analyses on the FFI are discussed.     

Moral sentiments and cooperation: Differential influences of shame and guilt

For centuries economists and psychologists (Frank, 1988 Frank , R. H. (1988) . Passions within reason: The strategic role of the emotions . New York : Norton . (Originally published 1988)  [Google Scholar]; Ketelaar, 2004 Ketelaar, T. 2004. “Ancestral emotions, current decisions: Using evolutionary game theory to explore the role of emotions in decision-making”. In Evolutionary psychology, public policy and personal decisions, Edited by: Crawford, C. and Salmon, C. 145–163. Mahwah, NJ: Lawrence Erlbaum Associates, Inc.  [Google Scholar]; Smith, 1759) have argued that moral emotions motivate cooperation. Ketelaar and Au (2003 Ketelaar, T. and Au, W. T. 2003. The effects of guilt on the behaviour of uncooperative individuals in repeated social bargaining games: An affect-as-information interpretation of the role of emotion in social interaction. Cognition and Emotion, 17: 429–453. [Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) recently found first evidence that guilt increases cooperation for proselfs in social bargaining games. We investigated whether this effect would also occur for shame, another moral emotion. Using a dyadic social dilemma game in Experiment 1 and an everyday cooperation measure in Experiment 2 as measures for short-term cooperation, we replicated Ketelaar and Au's findings for guilt. However, as predicted on the basis of previous emotion research, we found no such effect for shame. These results clearly indicate that the effects of moral emotions on cooperative behaviour can only be understood if the specific moral emotion is known.     

Semantic ambiguity within and across languages: An integrative review

Semantic ambiguity often occurs within a language (e.g., the word “organ” in English means both a body part and a musical instrument), but it can also cross a language boundary, such that a given word form is shared in two languages, but its meanings are different (e.g., the word “angel” means “sting” in Dutch). Bilingual individuals are therefore faced not only with ambiguity in each of their languages, but also with ambiguity across languages. The current review focuses on studies that explored such cross-language ambiguity and examines how the results from these studies can be integrated with what we have learned about within-language ambiguity resolution. In particular, this review examines how interactions of frequency and context manifest themselves in ambiguity that crosses a language boundary and call for the inclusion of language context as a contributing factor. An extension of the monolingual reordered access model (Duffy, Morris, & Rayner, 1988 Duffy, S. A., Morris, R. K. and Rayner, K. 1988. Lexical ambiguity and fixation times in reading. Journal of Memory and Language, 27: 429–446. [Crossref], [Web of Science ®] , [Google Scholar]) is outlined to discuss the interactions between these factors. Furthermore, the effects of the similarity between the two meanings, task differences, and individual differences are explored. This review highlights the need for studies that test within- and cross-language ambiguity in the same individuals before strong conclusions can be made about the nature of interactions between frequency, semantic context, and language context.     

Sustained suppression in congruency tasks

In a list version of the Stroop task, Thomas (1977 Thomas, JK. 1977. Stroop interference with word or hue pre-exposure. Dissertation Abstracts International, 38: 1450 [Google Scholar]) observed that Stroop interference was smaller when the irrelevant word was repeated through parts of the list. MacLeod (1991 MacLeod, CM. 1991. Half a century of research on the Stroop effect: An integrative review. Psychological Bulletin, 109: 163–203. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) formulated the sustained-suppression hypothesis for this effect. It is assumed that the automatic response activation on the basis of the irrelevant word is selectively suppressed. In this paper this hypothesis is further investigated. In a serial Stroop task with short response–stimulus interval (RSI) we demonstrate that the Stroop effect disappears when the irrelevant word is repeated, whereas the Stroop effect is evident when the word changes. With a long RSI, there is no influence of the sequence of the irrelevant word. The same pattern of results is observed in a flanker task. The results are discussed in terms of the activation-suppression model (Ridderinkhof, 2002 Ridderinkhof, KR. 2002. Micro- and macro-adjustments of task set: Activation and suppression in conflict tasks. Psychological Research, 66: 312–323. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) and the sustained-suppression hypothesis.     

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.     

Homophonic context effects when naming Japanese kanji: evidence for processing costs?

The current study investigated the effects of phonologically related context pictures on the naming latencies of target words in Japanese and Chinese. Reading bare words in alphabetic languages has been shown to be rather immune to effects of context stimuli, even when these stimuli are presented in advance of the target word (e.g., Glaser & Düngelhoff, 1984 Glaser, W. R. and Düngelhoff, F. J. 1984. The time course of picture–word interference. Journal of Experimental Psychology: Human Perception and Performance, 10: 640–654. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Roelofs, 2003 Roelofs, A. 2003. Goal-referenced selection of verbal action: Modeling attentional control in the Stroop task. Psychological Review, 110: 88–125. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). However, recently, semantic context effects of distractor pictures on the naming latencies of Japanese kanji (but not Chinese hànzì) words have been observed (Verdonschot, La Heij, & Schiller, 2010 Verdonschot, R. G., La Heij, W. and Schiller, N. O. 2010. Semantic context effects when naming Japanese kanji, but not Chinese hànzì. Cognition, 115: 512–518. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). In the present study, we further investigated this issue using phonologically related (i.e., homophonic) context pictures when naming target words in either Chinese or Japanese. We found that pronouncing bare nouns in Japanese is sensitive to phonologically related context pictures, whereas this is not the case in Chinese. The difference between these two languages is attributed to processing costs caused by multiple pronunciations for Japanese kanji.     

The Roots of Envy: The Unaesthetic Experience of the Tantalized/Dispossessed Self

In this paper I suggest that no matter how omnipotent, destructive, or perverse the currents of entitlement and hatred are that envy coils around, envy often serves as a fig-leaf for desire—a psychic figuration of refused desire. This claim invites us to consider the vicissitudes of maternal subjectivity in order to understand the patient's unconscious envy. Whereas Klein's focused on the wish to spoil the good object or take something away from her, my emphasis is on the self and the archaic wish/need to feel at-one-with/the same as the object which, when not realized, can transform into destructive envy. This paper attempts to develop the following three claims: (a) the idea of lack, abjection and/or humiliation as a narcissistic precondition for unconscious envy; (b) envy as a phantasied, pre-emptive means of identifying with the object once normal identificatory processes have gone awry (Benjamin, J., 1988 Benjamin, J. 1988. The bonds of love: Psychoanalysis, feminism, and the problem of domination New York: Pantheon..  [Google Scholar], 1995 Benjamin, J. 1995. Like subjects, love objects: Essays on recognition and sexual difference New Haven, CT: Yale University Press..  [Google Scholar]); and (c) the role of the analyst's subjectivity and unconscious communication in provoking or mitigating the patient's unconscious envy (Spillius, 1993 Spillius, E. B. 1993. Varieties of envious experience.. International Journal of Psycho-Analysis, 74: 1199–1213. [PubMed], [Web of Science ®] , [Google Scholar])—specifically, the analyst's unconscious countertransference identification.     

There goes the neighbourhood: Contextual control over the breadth of lexical activation when reading aloud

There are currently two computational accounts of how the time to read pseudohomophones (like BRANE) and their nonword controls (like FRANE) varies with changes in context. In Reynolds and Besner's (2005) account, readers vary the breadth of lexical activation in response to changes in context. A competing account proposed by Kwantes and Marmurek (2007 Kwantes, P. and Marmurek, H. 2007. Controlling lexical contributions to the reading of pseudohomophones. Psychonomic Bulletin & Review, 14: 373–378. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) and independently by Perry, Ziegler, and Zorzi (2007 Perry, C., Ziegler, J. C. and Zorzi, M. 2007. Nested incremental modeling in the development of computational theories: The CDP+ model of reading aloud. Psychological Review, 114: 273–315. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) has readers varying their response criterion in response to changes in context. The present work adjudicates between these two accounts by examining how the effect of neighbourhood density changes as a function of list context when reading pseudohomophones aloud. The results of an experiment and simulations from a leading computational model support the lexical breadth account, but are inconsistent with the response criterion account.     

Gaze Aversion During Children's Transient Knowledge and Learning

Looking away from an interlocutor's face during demanding cognitive activity can help adults and children answer challenging mental arithmetic and verbal-reasoning questions (Glenberg, Schroeder, & Robertson, 1998 Glenberg, A. M., Schroeder, J. L. and Robertson, D. A. 1998. Averting the gaze disengages the environment and facilitates remembering. Memory and Cognition, 26: 651–658. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Phelps, Doherty-Sneddon, & Warnock, 2006 Phelps, F., Doherty-Sneddon, G. and Warnock, H. 2006. Functional benefits of children's gaze aversion during questioning. British Journal of Developmental Psychology, 24: 577–588. [Crossref], [Web of Science ®] , [Google Scholar]). While such “gaze aversion” (GA) is used far less by 5-year-old school children, its use increases dramatically during the first years of primary education, reaching adult levels by 8 years of age (Doherty-Sneddon, Bruce, Bonner, Longbotham, & Doyle, 2002 Doherty-Sneddon, G., Bruce, V., Bonner, L., Longbotham, S. and Doyle, C. 2002. Development of gaze aversion as disengagement from visual information. Developmental Psychology, 38: 438–445. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). Furthermore, GA increases with increasing mental demands, with high levels signalling that an individual finds material being discussed challenging but remains engaged with it (Doherty-Sneddon et al., 2002 Doherty-Sneddon, G., Bruce, V., Bonner, L., Longbotham, S. and Doyle, C. 2002. Development of gaze aversion as disengagement from visual information. Developmental Psychology, 38: 438–445. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Doherty-Sneddon & Phelps, 2005 Doherty-Sneddon, G. and Phelps, F. 2005. Gaze aversion: A solution to cognitive or social difficulty?. Memory and Cognition, 33: 727–733. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). In the current study we investigate whether patterns of gaze and gaze aversion during children's explanations can predict when they are in states of transient knowledge (Karmiloff-Smith 1992 Karmiloff-Smith, A. 1992. Beyond modularity: A developmental perspective on cognitive science, Cambridge, MA: MIT Press.  [Google Scholar]; Goldin-Meadow, Kim, & Singer, 1999 Goldin-Meadow, S., Kim, S. and Singer, M. 1999. What the teacher's hands tell the student's mind about math. Journal of Educational Psychology, 91: 720–730. [Crossref], [Web of Science ®] , [Google Scholar]). In Study 1, thirty-three 6-year-old children completed a balance beam task (Pine & Messer, 2000 Pine, K. J. and Messer, D. 2000. The effects of explaining another's actions on children's implicit theories of balance. Cognition and Instruction, 18: 37–54. [Taylor & Francis Online] , [Google Scholar]). Children who improved the representational level of their explanations (Karmiloff-Smith, 1992 Karmiloff-Smith, A. 1992. Beyond modularity: A developmental perspective on cognitive science, Cambridge, MA: MIT Press.  [Google Scholar]) of this task with training used more GA than those who did not. Practical implications for teaching and for recognizing transient knowledge states are discussed. In Study 2, fifty-nine 6-year-olds took part and completed a “Time Task” along with periodic teaching intervention to improve their comprehension of telling the time. Some children improved immediately, whereas others did so more gradually. The gradual improvers showed the highest levels of GA, particularly when they were at an intermediate level of performance.     

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.