Natural concepts in a juvenile gorilla (gorilla gorilla gorilla) at three levels of abstraction

The extent to which nonhumans are able to form conceptual versus perceptual discriminations remains a matter of debate. Among the great apes, only chimpanzees have been tested for conceptual understanding, defined as the ability to form discriminations not based solely on simple perceptual features of stimuli, and to transfer this learning to novel stimuli. In the present investigation, a young captive female gorilla was trained at three levels of abstraction (concrete, intermediate, and abstract) involving sets of photographs representing natural categories (e.g., orangutans vs. humans, primates vs. nonprimate animals, animals vs. foods). Within each level of abstraction, when the gorilla had learned to discriminate positive from negative exemplars in one set of photographs, a novel set was introduced. Transfer was defined in terms of high accuracy during the first two sessions with the new stimuli. The gorilla acquired discriminations at all three levels of abstraction but showed unambiguous transfer only with the concrete and abstract stimulus sets. Detailed analyses of response patterns revealed little evidence of control by simple stimulus features. Acquisition and transfer involving abstract stimulus sets suggest a conceptual basis for gorilla categorization. The gorilla's relatively poor performance with intermediate-level discriminations parallels findings with pigeons, and suggests a need to reconsider the role of perceptual information in discriminations thought to indicate conceptual behavior in nonhumans.     

Narcissism in the modern world

Narcissism has been around since the time of Ovid more than 2000?years ago and the concept has long been a source of study, intrigue, fascination and literature both within and beyond the psychoanalytic community. While Narcissistic Personality Disorder remains a severe and fairly rare clinically diagnosed condition, sub-clinical narcissism or narcissistic traits have reached epidemic proportions with serious consequences. Ever increasing levels of greed, self-obsession, superficial relationships, arrogance and vanity are everywhere apparent and not making us any happier, with common mental health problems on the increase, especially among the young. Seemingly irreversible alterations to family life, technological development – including social media, attitudes to death and dying and celebrity worship, all feature in the rise of our narcissistic society and are interconnected trends. Group greed and grandiosity, as in the world of banking, have led to wide-scale corruption and cover-ups leaving us vulnerable and unable to place our trust in many organisations. Perhaps most sinister of all is our attitude to the planet that supports us, as we play a part in the destruction of much of the environment and many of the species that share the earth with us. Looking at the literature of narcissism, the aim of this paper is to consider ways in which cultural changes have brought about this huge rise in both individual and group egotism. We are seeing many more clients high on the narcissistic spectrum but consideration will be given to the narcissism of the therapist and the impact of the therapist’s narcissism on the client. We live in difficult times and cannot step outside our culture but there are ways of countering our narcissism and helping our clients to do the same. Having compassion for one’s self and recognising how ordinary we really are make for a good start.     

Decomposing the within-person and between-person sources of variation in physical activity-cognition associations for low-active older adults

Abstract

Objectives: To examine within-person and between-person sources of variation in the relationship between physical activity and cognition in older adults participating in a walking program. To explore whether demographic, health and fitness variables, and their interactions with activity, are significant predictors of cognition.

Design: Brief longitudinal burst design.

Participants: 118 participants (91 females, mean age?=?72.81?+ 5.24 years).

Main Outcome Measures: Cognition, self-reported moderate-to-vigorous walking and self-reported moderate-to-vigorous physical activity were assessed at baseline and 6, 9, 12 and 16 weeks follow-up. Attendance at weekly walks was also recorded.

Results: Within-persons, changes in physical activity were related to select measures of executive functioning, with increased activity predictive of better cognition (three of four cognitive functions, p<.05). Between-persons, activity was also associated with cognition (two of four cognitive functions, p<.05). Younger age and higher education were related to better cognition. Interactions of demographic, health, and fitness variables with changes in within-person activity were generally non-significant.

Conclusion: The results highlight the importance of distinguishing within- from between-person effects in longitudinal analyses of the association between physical activity and cognition. This stringent within-person test of association underscores the potential value of simple physical activity interventions for improving cognitive function.     

Cultural Differences in the Motivation to Seek Performance Feedback: A Comparative Policy-Capturing Study

We examined differences in the motivation to directly seek performance feedback between Canadian (n?=?72) and Chinese (n?=?64) participants using a policy-capturing methodology. Results generally support the premise that the motivation to seek performance feedback varies as a function of national culture. Compared to Canadians, image-defense motivation was more predictive of (a) the importance placed on feedback source, and (b) whether feedback is sought in public, for feedback-seeking decisions among Chinese participants. Ego-defense motivation was more predictive of the importance placed on feedback valence for feedback-seeking decisions among Canadian participants than among those from China. We discuss the implications of the study findings and consider future research directions.     

Does Response Inhibition Have Pre- and Postdiagnostic Utility in Parkinson's Disease?

ABSTRACT. Parkinson's disease (Pd) is the second most prevalent degenerative neurological condition worldwide. Improving and sustaining quality of life is an important goal for Parkinson's patients. Key areas of focus to achieve this goal include earlier diagnosis and individualized treatment. In this review the authors discuss impulse control in Pd and examine how measures of impulse control from a response inhibition task may provide clinically useful information (a) within an objective test battery to aid earlier diagnosis of Pd and (b) in postdiagnostic Pd, to better identify individuals at risk of developing impulse control disorders with dopaminergic medication.     

Teaching and Generalizing Pretend Play in Children with Autism Using Video Modeling and Matrix Training

Children with autism spectrum disorder often lack play skills. Video modeling has been effective in producing play; however, this play is often lacking in novelty. The purpose of the present study was to combine video modeling and matrix training to teach children with autism to engage in sequences of play with 30 vocalizations and 40 actions. Matrix training was used in an attempt to enhance generalization, specifically in recombining elements of play across play scenarios. Three participants were trained on three play scenarios for three play sets and materials using video modeling. Play scenarios were arranged in a 3‐dimensional matrix, which also depicted the possible recombined sequences that could emerge. Probes were then conducted to determine whether different combinations of play would occur. Results for all participants showed that after training on three video modeling play scenarios, learned vocalizations and actions were recombined across previously unlearned combinations of play sets and materials. Results also showed that after video modeling began, novel play that was not seen in baseline sessions emerged for all participants. Copyright © 2015 John Wiley & Sons, Ltd.     

Flexibility within working memory and the focus of attention for sequential verbal information does not depend on active maintenance

The focus of attention seems to be a static element within working memory when verbal information is serially presented, unless additional time is available for processing or active maintenance. Experiment 1 manipulated the reward associated with early and medial list positions in a probe recognition paradigm and found evidence that these nonterminal list positions could be retrieved faster and more accurately if participants were appropriately motivated—without additional time for processing or active maintenance. Experiment 2 used articulatory suppression and demonstrated that the underlying maintenance mechanism cannot be attributed to rehearsal, leaving attentional refreshing as the more likely mechanism. These findings suggest that the focus of attention within working memory can flexibly maintain nonterminal early and medial list representations at the expense of other list representations even when there is not additional time for processing or active maintenance. Maintenance seems to be accomplished through an attentional refreshing mechanism.     

It’s not Just the “Heavy NP”: Relative Phrase Length Modulates the Production of Heavy-NP Shift

Heavy-NP shift is the tendency for speakers to place long direct object phrases at the end of a clause rather than next to the verb. Though some analyses have focused on length of the direct object phrase alone, results from two experiments demonstrate that the length of the direct object relative to that of other phrases, and not the length of the direct object alone, predicts production of the shifted structure. These data support an accessibility-based interpretation of length effects in word order emerging from incremental production processes, in which longer phrases tend to be less easily planned and therefore are delayed during utterance planning.