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Social and Behavioral Sciences Commons™

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Psychology

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Western University

2017

Articles 121 - 129 of 129

Full-Text Articles in Social and Behavioral Sciences

Hippocampal Astrocytes In Migrating And Wintering Semipalmated Sandpiper, Dario Carvalho-Paulo, Nara G De Morais Magalhães, Diego De Almeida Miranda, Daniel G Diniz, Ediely P Henrique, Isis A M Moraes, Patrick D C Pereira, Mauro A D De Melo, Camila M De Lima, Marcus A De Oliveira, Cristovam Guerreiro-Diniz, David F Sherry, Cristovam W P Diniz Jan 2017

Hippocampal Astrocytes In Migrating And Wintering Semipalmated Sandpiper, Dario Carvalho-Paulo, Nara G De Morais Magalhães, Diego De Almeida Miranda, Daniel G Diniz, Ediely P Henrique, Isis A M Moraes, Patrick D C Pereira, Mauro A D De Melo, Camila M De Lima, Marcus A De Oliveira, Cristovam Guerreiro-Diniz, David F Sherry, Cristovam W P Diniz

Brain and Mind Institute Researchers' Publications

Seasonal migratory birds return to the same breeding and wintering grounds year after year, and migratory long-distance shorebirds are good examples of this. These tasks require learning and long-term spatial memory abilities that are integrated into a navigational system for repeatedly locating breeding, wintering, and stopover sites. Previous investigations focused on the neurobiological basis of hippocampal plasticity and numerical estimates of hippocampal neurogenesis in birds but only a few studies investigated potential contributions of glial cells to hippocampal-dependent tasks related to migration. Here we hypothesized that the astrocytes of migrating and wintering birds may exhibit significant morphological and numerical differences …

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Of Bayes And Bullets: An Embodied, Situated, Targeting-Based Account Of Predictive Processing, M.L. Anderson Jan 2017

Of Bayes And Bullets: An Embodied, Situated, Targeting-Based Account Of Predictive Processing, M.L. Anderson

Brain and Mind Institute Researchers' Publications

No abstract provided.

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Are There Place Cells In The Avian Hippocampus?, David F Sherry, Stephanie L Grella, Mélanie F Guigueno, David J White, Diano F Marrone Jan 2017

Are There Place Cells In The Avian Hippocampus?, David F Sherry, Stephanie L Grella, Mélanie F Guigueno, David J White, Diano F Marrone

Brain and Mind Institute Researchers' Publications

Birds possess a hippocampus that serves many of the same spatial and mnemonic functions as the mammalian hippocampus but achieves these outcomes with a dramatically different neuroanatomical organization. The properties of spatially responsive neurons in birds and mammals are also different. Much of the contemporary interest in the role of the mammalian hippocampus in spatial representation dates to the discovery of place cells in the rat hippocampus. Since that time, cells that respond to head direction and cells that encode a grid-like representation of space have been described in the rat brain. Research with homing pigeons has discovered hippocampal cells, …

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Two Years Of Relationship-Focused Mentoring For First Nations, Métis, And Inuit Adolescents: Promoting Positive Mental Health, Claire Crooks, Deinera Exner-Cortens, Sarah Burm, Alicia Lapointe, Deb Chiodo Jan 2017

Two Years Of Relationship-Focused Mentoring For First Nations, Métis, And Inuit Adolescents: Promoting Positive Mental Health, Claire Crooks, Deinera Exner-Cortens, Sarah Burm, Alicia Lapointe, Deb Chiodo

Education Publications

First Nations, Métis, and Inuit (FNMI) youth are disproportionately affected by a range of negative health outcomes including poor emotional and psychosocial well-being. At the same time, there is increasing awareness of culturally-specific protective factors for these youth, such as cultural connectedness and identity. This article reports the findings of a mixed-methods, exploratory longitudinal study on the effects of a culturally-relevant school-based mentoring program for FNMI youth that focuses on promoting mental well-being and the development of cultural identity. Participants included a cohort of FNMI adolescents whom we tracked across the transition from elementary to secondary school. We utilized data …

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Origins Of Thalamic And Cortical Projections To The Posterior Auditory Field In Congenitally Deaf Cats., Blake E Butler, Nicole Chabot, Andrej Kral, Stephen G Lomber Jan 2017

Origins Of Thalamic And Cortical Projections To The Posterior Auditory Field In Congenitally Deaf Cats., Blake E Butler, Nicole Chabot, Andrej Kral, Stephen G Lomber

Psychology Publications

Crossmodal plasticity takes place following sensory loss, such that areas that normally process the missing modality are reorganized to provide compensatory function in the remaining sensory systems. For example, congenitally deaf cats outperform normal hearing animals on localization of visual stimuli presented in the periphery, and this advantage has been shown to be mediated by the posterior auditory field (PAF). In order to determine the nature of the anatomical differences that underlie this phenomenon, we injected a retrograde tracer into PAF of congenitally deaf animals and quantified the thalamic and cortical projections to this field. The pattern of projections from …

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A Model Of Event Knowledge, Jeffrey L. Elman, Ken Mcrae Jan 2017

A Model Of Event Knowledge, Jeffrey L. Elman, Ken Mcrae

Psychology Publications

We present a connectionist model of event knowledge that is trained on examples of sequences of activities that are not explicitly labeled as events. The model learns co-occurrence patterns among the components of activities as they occur in the moment (entities, actions, and contexts), and also learns to predict sequential patterns of activities. In so doing, the model displays behaviors that in humans have been characterized as exemplifying inferencing of unmentioned event components, the prediction of upcoming components (which may or may not ever happen or be mentioned), reconstructive memory, and the ability to flexibly accommodate novel variations from previously …

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Racial Segregation In The Rise And Fall Of 22nd Street South: The Unfolding Story Of The Historic Black Business Recreational District In St. Petersburg, Florida, Marvin L. Simner Jan 2017

Racial Segregation In The Rise And Fall Of 22nd Street South: The Unfolding Story Of The Historic Black Business Recreational District In St. Petersburg, Florida, Marvin L. Simner

Psychology Publications

A clause entitled “Segregation of Races” was inserted in the St. Petersburg City Charter in 1931. It wasn’t until 1936, however, that the clause gave rise to the first segregated housing zone within the city. In this report we provide evidence to suggest that it was the Federal Government and not the St. Petersburg city council, as has been claimed, that was responsible for the implementation of this clause and the segregated commercial district that developed along 22nd Street South. We then document the rise of this commercial district and present further evidence that city council showed little interest …

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Are There Place Cells In The Avian Hippocampus?, David F Sherry, Stephanie L Grella, Mélanie F Guigueno, David J White, Diano F Marrone Jan 2017

Are There Place Cells In The Avian Hippocampus?, David F Sherry, Stephanie L Grella, Mélanie F Guigueno, David J White, Diano F Marrone

Psychology Publications

Birds possess a hippocampus that serves many of the same spatial and mnemonic functions as the mammalian hippocampus but achieves these outcomes with a dramatically different neuroanatomical organization. The properties of spatially responsive neurons in birds and mammals are also different. Much of the contemporary interest in the role of the mammalian hippocampus in spatial representation dates to the discovery of place cells in the rat hippocampus. Since that time, cells that respond to head direction and cells that encode a grid-like representation of space have been described in the rat brain. Research with homing pigeons has discovered hippocampal cells, …

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Reducing The Stigma Of Depression Among Asian Students: A Social Norm Approach, Francois B. Botha, Amanda L. Shamblaw, David J.A. Dozois Jan 2017

Reducing The Stigma Of Depression Among Asian Students: A Social Norm Approach, Francois B. Botha, Amanda L. Shamblaw, David J.A. Dozois

Psychology Publications

In North America, Asians reliably report higher levels of stigma toward people with depression than do Europeans. Possible methods of reducing this discrepancy have rarely been explored. Asian undergraduate students ( n = 132) were presented with one of four antistigma videos with two actresses: one portraying a student with depression and the other a professor. The videos used the concept of social proof, presenting either positive or negative descriptive norms, to effect change in stigma, measured by social distance. It was hypothesized that the positive descriptive norms intervention would show significantly greater positive change in social distance compared with …

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