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Effects Of Predation Pressure On The Cognitive Ability Of The Poeciliid Brachyraphis Episcopi, Culum Brown, Victoria A. Braithwaite
Effects Of Predation Pressure On The Cognitive Ability Of The Poeciliid Brachyraphis Episcopi, Culum Brown, Victoria A. Braithwaite
Sentience Collection
Variable levels of predation pressure are known to have significant impacts on the evolutionary ecology of different populations and can affect life-history traits, behavior, and morphology. To date, no studies have directly investigated the impact of predation pressure on cognitive ability. Here we use a system of replicate rivers, each with sites of high- and low-predation pressure, to investigate how this ecological variable affects learning ability in a tropical poeciliid, Brachyraphis episcopi. We used a spatial task to assess the cognitive ability of eight populations from four independent streams (four high- and four low- predation populations). The fish were required …
Speeded Retrieval Abolishes The False Memory Suppression Effect: Evidence For The Distinctiveness Heuristic, C. S. Dodson, Amanda C. Gingerich
Speeded Retrieval Abolishes The False Memory Suppression Effect: Evidence For The Distinctiveness Heuristic, C. S. Dodson, Amanda C. Gingerich
Scholarship and Professional Work - LAS
We examined two different accounts of why studying distinctive information reduces false memories within the DRM paradigm. The impoverished relational encoding account predicts that less memorial information, such as overall famililarity, is elicited by the critical lure after distinctive encoding than after non-distinctive encoding. By contrast, the distinctiveness heuristic predicts that participants use a deliberate retrieval strategy to withhold responding to the critical lures. This retrieval strategy refers to a decision rule whereby the absence of memory for expected distinctive information is taken as evidence for an event’s nonoccurrence. We show that the typical false recognition suppression effect only occurs …
Serum Cholesterol And Cognitive Performance In The Framingham Heart Study, Penelope K. Elias, Merrill F. Elias, Ralph B. D'Agostino, Lisa M. Sullivan, Philip A. Wolf
Serum Cholesterol And Cognitive Performance In The Framingham Heart Study, Penelope K. Elias, Merrill F. Elias, Ralph B. D'Agostino, Lisa M. Sullivan, Philip A. Wolf
Maine-Syracuse Longitudinal Papers
Objective: The objective of this study was to examine the relationship between total cholesterol (TC) and cognitive performance within the context of the Framingham Heart Study, a large, community-based, prospective investigation of cardiovascular risk factors. Methods: Participants were 789 men and 1105 women from the Framingham Heart Study original cohort who were free of dementia and stroke and who received biennial TC determinations over a 16- to 18-year surveillance period. Cognitive tests were administered 4 to 6 years subsequent to the surveillance period and consisted of measures of learning, memory, attention/ concentration, abstract reasoning, concept formation, and organizational abilities. Statistical …