Replies to comments on Evolutionary psychology: Controversies, questions, prospects, and limitations (see record 2010-02208-001) by Confer et al. The purpose of which was to clarify the logic of evolutionary psychology and clear up some of the more common misunderstandings about it. In this response, we address the key points raised by the commentators.
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Learning to fear novel stimuli by observing others in the social affordance framework.
Neurosci Biobehav Rev
January 2025
Department of Psychology, University of Turin, Turin, Italy; Department of Medical and Clinical Psychology, Tilburg University, Netherlands; Centro Linceo Interdisciplinare "Beniamino Segre", Accademia Nazionale dei Lincei, Roma, Italy. Electronic address:
Fear responses to novel stimuli can be learned directly, through personal experiences (Fear Conditioning, FC), or indirectly, by observing conspecific reactions to a stimulus (Social Fear Learning, SFL). Although substantial knowledge exists about FC and SFL in humans and other species, they are typically conceived as mechanisms that engage separate neural networks and operate at different levels of complexity. Here, we propose a broader framework that links these two fear learning modes by supporting the view that social signals may act as unconditioned stimuli during SFL.
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Alzheimers Dement
December 2024
Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile.
Background: Chronic exposition to stressor factors has been postulated as a cause of structural changes in the brain in the context of dementia. One of these changes can be the fiber integrity loss, that can be measured by diffusion tensor imaging (DTI). We obtained DTI whole brain metrics to relate them with allostatic load in subjects of a chilean cohort of cognitive complaint subjects.
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Alzheimers Dement
December 2024
Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile.
Background: Chronic exposure to stress, quantified by allostatic load (AL), has been postulated as a cause of structural brain changes in the context of dementia. White matter hyperintensities (WMH), detected in MRI FLAIR, are a common brain abnormality representing small vessel disease or degenerative changes in the brain. Here, we studied differences in tract-specific WMH volume across three risk levels of AL in Chilean subjects with cognitive complaint, to explore links between chronic stress exposure and prodromal steps of dementia.
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Alzheimers Dement
December 2024
Neuropsychology and Clinical Neuroscience Laboratory (LANNEC), Physiopathology Department - ICBM, Neuroscience and East Neuroscience Departments, Faculty of Medicine, Universidad de Chile, Santiago, Chile.
Background: The Alzheimer's Disease (AD) continuum is composed of Subjective Cognitive Decline (SCD), Mild Cognitive Impairment (MCI), and Alzheimer's Disease Dementia (ADD). Changes in grey matter volume (GMV), characteristic of the AD continuum, are related to cognitive and activities of daily living (ADL) impairments. ADLs are divided into three domains: i) Basic (BADL), ii) Instrumental (IADL), and iii) Advanced (AADL), and their study is critical for understanding the evolution and adequate follow-up of patients.
View Article and Find Full Text PDFInconclusive evidence for associations between adverse experiences in adulthood and working memory performance.
R Soc Open Sci
January 2025
Department of Psychology, Utrecht University, Utrecht, The Netherlands.
Decades of research have shown that adversity tends to be associated with lower working memory (WM) performance. This literature has mainly focused on impairments in the capacity to hold information available in WM for further processing. However, some recent adaptation-based studies suggest that certain types of adversity can leave intact, or even enhance, the ability to rapidly update information in WM.
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