The Impact of Chronic Pesticide Exposure on Neuropsychological Functioning

The Psychological Record - This study compared neuropsychological test performance of individuals (n = 18) with an occupational history of pesticide exposure to individuals (n = 35) with no such...     

TMS to the “occipital face area” affects recognition but not categorization of faces

The human cortical system for face perception is comprised of a network of connected regions including the middle fusiform gyrus (“fusiform face area” or FFA), the inferior occipital cortex (“occipital face area” or OFA), and the superior temporal sulcus. The traditional hierarchical feedforward model of visual processing suggests information flows from early visual cortex to the OFA for initial face feature analysis to higher order regions including the FFA for identity recognition. However, patient data suggest an alternative model. Patients with acquired prosopagnosia, an inability to visually recognize faces, have been documented with lesions to the OFA but who nevertheless show face-selective activation in the FFA. Moreover, their ability to categorize faces remains intact. This suggests that the FFA is not solely responsible for face recognition and the network is not strictly hierarchical, but may be organized in a reverse hierarchical fashion. We used transcranial magnetic stimulation (TMS) to temporarily disrupt processing in the OFA in neurologically-intact individuals and found participants’ ability to categorize intact versus scrambled faces was unaffected, however face identity discrimination was significantly impaired. This suggests that face categorization but not recognition can occur without the “earlier” OFA being online and indicates that “lower level” face category processing may be assumed by other intact face network regions such as the FFA. These results are consistent with the patient data and support a non-hierarchical, global-to-local model with re-entrant connections between the OFA and other face processing areas.     

Direct and interactive effects of parent,friend and schoolmate drinking on alcohol use trajectories

Objective: This study considered the unique and interactive roles of social norms from parents, friends and schools in predicting developmental trajectories of adolescent drinking and intoxication.

Design and outcome measures: Using data from the National Longitudinal Study of Adolescent Health, which followed adolescents (N = 18,921) for 13 years, we used discrete mixture modelling to identify unique developmental trajectories of drinking and of intoxication. Next, multilevel multinomial regression models examined the role of alcohol-related social norms from parents, friends and schoolmates in the prediction of youths’ trajectory group membership.

Results: Results demonstrated that social norms from parents, friends and schoolmates that were favourable towards alcohol use uniquely predicted drinking and intoxication trajectory group membership. Interactions between social norms revealed that schoolmate drinking played an important moderating role, frequently augmenting social norms from parents and friends. The current findings suggest that social norms from multiple sources (parents, friends and schools) work both independently and interactively to predict longitudinal trajectories of adolescent alcohol use.

Conclusions: Results highlight the need to identify and understand social messages from multiple developmental contexts in efforts to reduce adolescent alcohol consumption and alcohol-related risk-taking.     

The development of prospective memory in young schoolchildren: The impact of ongoing task absorption,cue salience,and cue centrality

This study presents evidence that 9- and 10-year-old children outperform 6- and 7-year-old children on a measure of event-based prospective memory and that retrieval-based factors systematically influence performance and age differences. All experiments revealed significant age effects in prospective memory even after controlling for ongoing task performance. In addition, the provision of a less absorbing ongoing task (Experiment 1), higher cue salience (Experiment 2), and cues appearing in the center of attention (Experiment 3) were each associated with better performance. Of particular developmental importance was an age by cue centrality (in or outside of the center of attention) interaction that emerged in Experiment 3. Thus, age effects were restricted to prospective memory cues appearing outside of the center of attention, suggesting that the development of prospective memory across early school years may be modulated by whether a cue requires overt monitoring beyond the immediate attentional context. Because whether a cue is in or outside of the center of attention might determine the amount of executive control needed in a prospective memory task, findings suggest that developing executive control resources may drive prospective memory development across primary school age.     

Encouraging Occupation: A Systematic Review of the Use of Life Review and Reminiscence Therapy for the Treatment of Depressive Symptoms in Older Adults

The present systematic review investigates the efficacy of both life review and reminiscence therapy interventions in the treatment of depressive symptoms in older adults. A systematic review of the literature was conducted using three databases: Cumulative Index of Nursing and Allied Health Literature (CINAHL), PubMed, and PsycINFO. Six studies met the inclusion criteria, and pertinent variables were extracted for data analysis. In all six articles, the reminiscence therapy or life review intervention was found to be effective in the treatment of depressive symptoms in older adults. These interventions are appropriate for use in occupational therapy practice, as occupational therapists are well-equipped to treat the psychosocial needs of individuals.     

Free-associating with the bodymind

Abstract

The history of attitudes toward Freud's adoption of free-associative discourse, as well as toward the significance of the clinical significance of the free-associative method, is critically reviewed. It is argued that, if one takes the re-inviting of repressed contents back into self-consciousness to be the defining process of psychoanalysis as a discipline (distinguishing it even from those psychotherapies that are based on psychoanalytic models of the mind), then free-associating is indeed the sine qua non of the psychoanalysis process. It is further suggested that whereas Freud's notion of libidinality radically subverts Cartesian dualism, our thinking about the significance of free-associative discourse has too frequently lapsed into the mistaken assumption that free-associating should only be about what “comes to mind.” In this context, a way of free-associating with the “bodymind” is described as an addendum to customary psychoanalytic practices. This augmented method remains faithful to Freud's practice of allowing the voice of sensuality to “join the conversation,” at the same time that its clinical implementation incorporates some of the wisdom concerning “breathwork” that comes from the yogic procedures for cultivating awareness.     

Motivational Influences on Cognitive Performance in Children: Focus Over Fit

Cognitive psychologists have begun to address how motivational factors influence adults' performance on cognitive tasks. However, little research has examined how different motivational factors interact with one another to affect behavior across the life span. In the current study, the authors examined how children perform on a classification task when placed in a regulatory fit or mismatch. Nine-year-old children performed a classification task in which they either gained or lost points for each response. Additionally, children were given either a global promotion focus (trying to earn a gift card) or a prevention focus (trying to avoid losing a gift card). Previous work indicates that adults in this task tend to perform better when there is a match (or fit) between the incentive to gain, or avoid losing, a global reward, and the more local task reward structure to either maximize points gained or minimize points lost on a trial-by-trial basis. Unlike adults, 9-year-olds perform better in the promotion condition than in the prevention condition regardless of task reward structure. Possible explanations for the differences between adults' and children's performance are discussed as are possible applications for academic settings.     

A COMPARISON OF BRIEF FUNCTIONAL ANALYSES WITH AND WITHOUT CONSEQUENCES

Variations to traditional functional analysis methodology, such as brief functional analyses (BFAs), are prevalent in the literature. In the current evaluation, two types of BFAs were each conducted with five participants. In one, potential motivating operations (MOs) were presented, and problem behavior resulted in delivery of an associated consequence. In the other, the same MOs were presented, but no consequences were delivered. Results of the two BFAs were compared with respect to the conditions in which problem behavior occurred and the degree of differentiation between test and control conditions. Results across the BFA methodologies generally matched across all five participants. However, greater differentiation was observed in the BFA that did not include consequences. Copyright © 2012 John Wiley & Sons, Ltd.     

Using the Millon Behavioral Medicine Diagnostic (MBMD) to Evaluate the Need for Mental Health Services in Association with Biomarkers of Disease Status Among HIV Positive Men and Women

Psychological distress states have been related to rate of disease progression among HIV-positive individuals. However, the measures that have been used in this research as well as the treatment context of the populations studied are highly variable, making it challenging for clinicians to incorporate such measures into screening batteries. The present study examined the association of two summary scales of the Millon Behavioral Medicine Diagnostic (MBMD; Millon et al., Millon Behavioral Medicine Diagnostic. NCS Assessments, Minneapolis, 2001), with markers of HIV disease status (CD4 and CD8 cell counts, viral load) among an ethnically diverse sample of 147 HIV-positive individuals (52 men who have sex with men, 34 men who have sex with women, and 51 women) who had recently initiated Highly Active Antiretroviral Therapy (HAART). After controlling for age and months since HIV diagnosis, we found that higher scores on the overall MBMD Psych Referral Summary Scale, reflecting a need for mental health treatment, were related to greater HIV viral load but did not relate to CD4 or CD8 cell counts. Subgroup analyses revealed that Psych Referral scores were related to greater HIV viral load only for the men who have sex with men (MSM) subgroup. These results suggest that the MBMD may help in identifying psychosocial characteristics associated with some markers of disease status in persons with HIV and perhaps may also be useful in identifying individual differences in response to treatment and eventual disease outcome.     

Tracking speakers’ false beliefs: is theory of mind available earlier for word learning?

Happé and Loth (2002) describe word learning as a 'privileged domain' in the development of a theory of mind. We test this claim in a series of experiments based on the Sally-Anne paradigm. Three- and 4-year-old children's ability to represent others' false beliefs was investigated in tasks that required the child either to predict the actions of a protagonist in a story or to learn the meaning of a new word used by the protagonist. Experiment 1 replicated previous findings of better performance in a false belief word-learning task compared to a false belief action-prediction task. However, systematic manipulation of the task parameters in Experiments 2 and 3 revealed that this performance discrepancy disappeared when tasks were equated in their 'referential pull' (Perner, Rendl & Garnham, 2007). We conclude that the notion of a precocious theory of mind for word learning is not required to explain dissociations in performance on false belief tasks.