Can competitive paradigms increase the validity of experiments on primate social cognition?

Experiments vary in their ability to distinguish between competing hypotheses. In tests on primate cognition the majority of this variation is due to an experimenter's ability to test primates in valid settings while providing the adequate amount of experimental control. While experimenters studying primate cognition can use methods of control perfected in captivity, it is still very unclear how to design and then objectively evaluate the external validity of new experimental paradigms. I recommend that more effort be allocated to specify how to create relevant test settings for primates. Primate social life is highly competitive. This means that all aspects of primates themselves, including their cognitive abilities, have likely been shaped by the need to out-compete conspecifics. Based on this hypothesis, sophisticated cognitive abilities of primates might best be demonstrated in competitive contexts. Thus, it is suggested that one possible measure of validity is whether investigators integrate a competitive component into their experimental designs. To evaluate this methodological prediction I review the literature on chimpanzee perspective-taking as a case study including several recent studies that include a competitive component in their experimental designs. Accepted after revision: 8 April 2001 Electronic Publication     

Child’s Play: Anatomically Correct Dolls and Embodiment

Anatomically detailed dolls have been used to elicit testimony from children in sex abuse cases. However, studies have shown they often provide false accounts in young, preschool-age children. Typically this problem is seen as a cognitive one: with age, children can correctly map their bodies onto a doll due to greater intellectual ability to represent themselves. I argue, along with the work of Maurice Merleau-Ponty, that although cognitive developments aid in the ability to represent one’s own body, a discussion of embodiment is required in order to understand the use and abuse of anatomical dolls in forensic interviews. This paper examines these issues and maintains that a better understanding of embodied perception in both adults and children helps show how phenomenology can provide a more nuanced understanding to a troubling ethical and legal problem.

Modeling the Ecological Validity of Neurocognitive Assessment in Adults with Acquired Brain Injury

Neuropsychologists are increasingly asked to make judgments regarding treatment options and rehabilitation strategies in addition to evaluating the degree and scope of neuropsychological impairment following acquired brain injuries. The capacity to make informed clinical decisions relies upon research investigating the relationships between neuropsychological and psychosocial status (i.e., ecological validity). Unfortunately, much of this research employs exploratory analyses, an approach that can lead to theoretical ambiguity and ad-hoc interpretations. The current availability and accessibility of analytical tools, like structural equation modeling (SEM), however, permits the testing of specific hypotheses regarding ecological validity and promotes a-priori theory development. In the current study, a theory-driven model of the ecological validity of a neurocognitive assessment was tested against data obtained from individuals with acquired brain injury using SEM. The results provide confirmatory evidence for the ecological validity of neurocognitive constructs and empirical support for a theory-driven analytical approach to ecological validity research.     

Phonotactic constraints help to overcome effects of schwa deletion in French

In a crossmodal priming experiment, visual targets (e.g. RENARD, 'fox') were auditorily primed by either an intact [see text] 'the fox' or reduced form [see text] 'the fox' of the word. When schwa deletion gave rise to an initial cluster that respected the phonotactic constraints of French (e.g. [lapluz] 'the lawn' in which /pl/ is a legal word beginning in French), there was a processing cost for the targets primed by the reduced form of the word compared to intact primes (e.g. [see text] 'the lawn'). However, when schwa deletion produced an initial cluster that violated the phonotactic constraints of French (e.g. [see text], where /Rn/ is not allowed as a word beginning), there was no penalty for targets primed by reduced compared to intact forms of the word. Assuming that listeners change their phonemic percept when confronted with phonotactically illegal sequences (Segui, Frauenfelder, & Hallé, 2001), phonotactic constraints may help to restore the deleted schwa in sequences like le renard [see text] in French.     

Influence of dysphoria on positive and negative cognitive reactivity to daily mood fluctuations

We used an experience sampling design to investigate the influence of dysphoria on positive and negative cognitive reactivity. Participants recorded their thoughts and mood four times per day on PDA devices for one week. We hypothesized that those higher in dysphoria would demonstrate a greater increase in negative thinking in response to negative mood, and a weaker increase in positive cognitions in response to positive mood. These hypotheses were largely supported. For those participants who reported higher initial dysphoria, there was a stronger association between negative mood and thinking and a weaker link between positive mood and thinking. Regression analyses indicated that positive and negative cognitive reactivity were independently related to dysphoria, suggesting that they represent distinct processes. Our results highlight the importance of understanding levels of both negative and positive cognitive reactivity and underscore the benefits of assessing mood and cognition with repeated measurements in "real-time," in order to better understand the antecedent effects of mood on thinking.     

Effects of decision-phase time constraints on emotion-based learning in the Iowa Gambling Task

Research employing the Iowa Gambling Task (IGT) has frequently shown that learning is impaired in various clinical populations. However, precisely what constitutes "unimpaired" control group learning remains unclear. In order to understand some of the possible factors underlying variability in control group IGT performance, the present study sought to manipulate features of the task to intentionally disrupt learning. Specifically, the present study investigated the effects of time constraints on emotion-based learning during automated administration of the IGT. For two groups of participants, a time-constraint of either 2-s or 4-s was implemented during the critical decision making period, while a control group received no time constraint. We also evaluated participants' subjective experience after every block of 20 trials. Results demonstrated that the 2-s group differed significantly from the control group. Subjective experience measures revealed rapid development of awareness of the advantageous and disadvantageous decks among all three groups. Overall, our findings demonstrate, for the first time, the effects of decision-phase time constraints on emotion-based learning and indicate that the IGT reward/punishment schedules are to some extent cognitively penetrable.     

Disorders in planning and strategy application in frontal lobe lesion patients

The aim of this study was to investigate deficits in planning ability using an adapted version of the Modified Six Elements Test, from the Behavioral Assessment of the Dysexecutive Syndrome—BADS [Wilson, B. A., Alderman, N., Burgess, P. W., Emslie, H., & Evans, J. J. (1996). Behavioural Assessment of the Dysexecutive Syndrome (BADS). Bury St Edmunds, U.K.: Thames Valley Test Company. Trans. Ricardo O Souza, Sergio L Schmidt. Rio de Janeiro: Cognição]. Subjects were left- and right-frontal lobe lesion patients. Other measures of executive dysfunctions used were verbal fluency, the Wisconsin Card Sorting Test, and the Trail Making Test. These other instruments were sensitive to detect executive deficits in the left frontal lobe lesion group, except the Wisconsin Card Sorting Test, which showed impairment only for the frontal lobe lesion group as a whole. The Modified Six Elements Test detected planning disorders in left frontal lobe lesion patients. The deficit of these patients was due to a greater likelihood to break the rules of the task, that is, in plan-following processes, rather than in planning the strategic approach to solve it.     

Homesickness in social context: An ecological momentary assessment study among 1st-year university students

Homesickness is common among university students and associated with mental health problems. Most previous studies assessed homesickness as a summary of the past weeks. However, there may be significant fluctuations across situations. At the current residence, homesickness may especially be triggered during (phone) interactions with attachment figures. Dutch and international 1st-year students (n = 92) completed the Utrecht Homesickness Scale and subsequently used a smartphone application to record social interactions for 14 days (ecological momentary assessment [EMA]). For each interaction they reported the social context (e.g. location, contact type) and their affective state, including homesickness. Homesickness in the past weeks and momentary homesickness were both higher in international students than in Dutch students. Feeling homesick was highest at participants' current residency, when interacting with parents, or when using video-chat. When participants felt more homesick, they reported less pleasant and more unpleasant affect. In conclusion, EMA provided insight in cross-situational variations in homesickness.     

“Neighborhood Matters”: Assessment of Neighborhood Social Processes

Neighborhoods are important contexts for understanding development and behavior, but cost and difficulty have challenged attempts to develop measures of neighborhood social processes at the neighborhood level. This article reports the development, reliability, and validity of Neighborhood Matters, a collection of instruments assessing three aspects of neighborhood social processes, namely, norms (five subscales), informal social control (six subscales and total scale), social connection (two subscales), as well as individual scales for assessing neighborhood change, neighborhood resources, and neighborhood problems. Six hundred six residents of Chicago, chosen at random from 30 neighborhoods (defined by US Census tracts), completed the measures. Neighborhoods were selected randomly from pools that balanced poverty and predominant (African‐American vs. Latino Hispanic) ethnicity. Within each neighborhood 20 individuals were selected at random, balanced by age (18–24 vs. 30+) and gender. Scaling and item analysis permitted reduction of the number of items in each scale. All subscales had individual‐level internal consistency in excess of .7. Generalizability theory analysis using random effects regression models found significant shared variance at the neighborhood level for three norms subscales, four informal social control subscales, both social connection subscales, and the neighborhood change, resources and problems scales. Validity analyses found significant associations between neighborhood‐level scores on multiple Neighborhood Matters scales and neighborhood levels of violent, property, and drug‐related crime. Discussion focuses on potential applications of the Neighborhood Matters scales in community research.