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Wiecki, Thomas V.; Frank, Michael J. – Psychological Review, 2013
Planning and executing volitional actions in the face of conflicting habitual responses is a critical aspect of human behavior. At the core of the interplay between these 2 control systems lies an override mechanism that can suppress the habitual action selection process and allow executive control to take over. Here, we construct a neural circuit…
Descriptors: Inhibition, Cognitive Processes, Brain Hemisphere Functions, Models
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Ojha, Rakesh; Sahu, Alakh N.; Muruganandam, A. V.; Singh, Gireesh Kumar; Krishnamurthy, Sairam – Brain and Cognition, 2010
"Asparagus Racemosus" (AR) is an Ayurvedic rasayana possessing multiple neuropharmacological activities. The adpatogenic and antidepressant activity of AR is well documented. The present study was undertaken to assess nootropic and anti-amnesic activities of MAR in rats. The Morris water maze (MWM) and elevated plus maze (EPM) models were employed…
Descriptors: Neurological Impairments, Memory, Brain Hemisphere Functions, Animals
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Chatham, Christopher H.; Herd, Seth A.; Brant, Angela M.; Hazy, Thomas E.; Miyake, Akira; O'Reilly, Randy; Friedman, Naomi P. – Journal of Cognitive Neuroscience, 2011
A paradigmatic test of executive control, the n-back task, is known to recruit a widely distributed parietal, frontal, and striatal "executive network," and is thought to require an equally wide array of executive functions. The mapping of functions onto substrates in such a complex task presents a significant challenge to any theoretical…
Descriptors: Short Term Memory, Cognitive Processes, Task Analysis, Brain Hemisphere Functions