Open Access. Powered by Scholars. Published by Universities.®

Cognitive Psychology Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 3 of 3

Full-Text Articles in Cognitive Psychology

Criterial Noise Effects On Rule-Based Category Learning: The Impact Of Delayed Feedback, Shawn W. Ell, David A. Ing, Todd W. Maddox Mar 2009

Criterial Noise Effects On Rule-Based Category Learning: The Impact Of Delayed Feedback, Shawn W. Ell, David A. Ing, Todd W. Maddox

Psychology Faculty Scholarship

Variability in the representation of the decision criterion is assumed in many category learning models yet few studies have directly examined its impact. On each trial, criterial noise should result in drift in the criterion and will negatively impact categorization accuracy, particularly in rule-based categorization tasks where learning depends upon the maintenance and manipulation of decision criteria. The results of three experiments test this hypothesis and examine the impact of working memory on slowing the drift rate. Experiment 1 examined the effect of drift by inserting a 5 s delay between the categorization response and the delivery of corrective feedback, …


Arterial Pulse Wave Velocity And Cognition With Advancing Age, Merrill F. Elias, Michael A. Robbins, Marc M. Budge, Walter P. Abhayaratna, Gregory A. Dore, Penelope K. Elias Feb 2009

Arterial Pulse Wave Velocity And Cognition With Advancing Age, Merrill F. Elias, Michael A. Robbins, Marc M. Budge, Walter P. Abhayaratna, Gregory A. Dore, Penelope K. Elias

Maine-Syracuse Longitudinal Papers

We hypothesized that carotid-femoral pulse wave velocity (PWV), a marker of arterial stiffness, interacts with age such that the magnitude of associations between PWV and cognitive performance are greater with increasing age and that this interaction is observed despite adjustments for demographic variables, mean arterial pressure, and cardiovascular risk factors. PWV was estimated using applanation tonometry in 409 dementia- and stroke-free participants of the Maine-Syracuse Longitudinal Study (24 to 92 years of age; 62.3% women). Using linear regression analyses in a cross-sectional design, associations between PWV and age and the interaction of PWV and age were examined in relation to …


Chronic Kidney Disease, Creatinine And Cognitive Functioning, Merrill F. Elias, Penelope K. Elias, Stephen L. Seliger, Sriram S. Narsipur, Gregory A. Dore, Michael A. Robbins Jan 2009

Chronic Kidney Disease, Creatinine And Cognitive Functioning, Merrill F. Elias, Penelope K. Elias, Stephen L. Seliger, Sriram S. Narsipur, Gregory A. Dore, Michael A. Robbins

Maine-Syracuse Longitudinal Papers

Background. Non-dialysis-dependent chronic kidney dis- ease (CKD) is related to cognitive impairment. Previous studies have not explored the extent of impairment across multiple cognitive domains. We examined the range of specific cognitive abilities affected by CKD and whether the associations of CKD with cognition were eliminated by statistical control for cardiovascular disease correlates of CKD. Methods. We performed a community-based cross-sectional study with 923 individuals free from dementia and end-stage renal disease. Two groups were defined based on estimated glomerular filtration rate (eGFR): eGFR/min/1.73 m2 versus eGFR≥60 mL/min/1.73 m2. Out- come measures were scores from multiple clinical tests of specific …