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Reversal Learning (Latest Articles)

 

Latest indexed articles for 'Reversal Learning'

Articles 31 to 40 of 200:

Processing of natural images is feedforward: a simple behavioral test.

30 Mar 2009 Natural images can be classified so rapidly that it has been suggested that their analysis is based on a first single pass of processing activity through the visuomotor system. We tested this theory in a visuomotor priming task in which speeded ...
rec_pub_19304649-processing-natural-images-feedforward-simple-behavioral-test.htm


Behavioral research in pigeons with ARENA: an automated remote environmental navigation apparatus.

7 Mar 2009 Three experiments established the effectiveness of an Automated Remote Environmental Navigation Apparatus (ARENA) developed in our lab to study behavioral processes in pigeons. The technology utilizes one or more wireless modules, each capable of ...
rec_pub_19429204-behavioral-research-pigeons-arena-automated-remote-environmental.htm


Selective aspiration or neurotoxic lesions of orbital frontal areas 11 and 13 spared monkeys' performance on the object discrimination reversal task.

2 Mar 2009 Damage to the orbital frontal cortex (OFC) has long been associated with reversal learning deficits in several species. In monkeys, this impairment follows lesions that include several OFC subfields. However, the different connectional patterns of ...
rec_pub_19261875-selective-aspiration-neurotoxic-lesions-orbital-frontal-areas-11-13.htm


Hot and cold cognition in unmedicated depressed subjects with bipolar disorder.

27 Feb 2009 OBJECTIVES: Neuropsychological studies in subjects with bipolar disorder (BD) have reported deficits on a variety of cognitive measures. However, because the majority of subjects were medicated at the time of testing in previous studies, it is ...
rec_pub_19267700-hot-cold-cognition-unmedicated-depressed-subjects-bipolar-disorder.htm


Intrahippocampal administration of an NMDA-receptor antagonist impairs spatial discrimination reversal learning in weanling rats.

23 Feb 2009 Systemic administration of MK-801, an NMDA-receptor antagonist, impairs reversal learning in weanling rats [Chadman, K.K., Watson, D.J., & Stanton, M.E. (2006). NMDA-receptor antagonism impairs reversal learning in developing rats. Behavioral ...
rec_pub_19248837-intrahippocampal-administration-nmda-receptor-antagonist-impairs.htm


Its own reward: lessons to be drawn from the reversed-reward contingency paradigm.

9 Feb 2009 This is a review of the reversed-reward contingency (RRC) paradigm in animals and the cognitive functions on which it is founded. I shall present the RRC basic paradigm and the ensuing modifications it underwent, the animals tested, the results ...
rec_pub_19205761-its-reward-lessons-drawn-reversed-reward-contingency-paradigm.htm


Visuo-spatial learning and memory deficits on the Barnes maze in the 16-month-old APPswe/PS1dE9 mouse model of Alzheimer's disease.

4 Feb 2009 The APPswe/PS1dE9 mouse is a double transgenic model of Alzheimer's disease, which harbors mutant mouse/human amyloid precursor protein (Swedish K594N/M595L) and presenilin-1 genes (PS1-dE9). These mice develop beta-amyloid plaques and exhibit ...
rec_pub_19428625-visuo-spatial-learning-memory-deficits-barnes-maze-16-month-old.htm


Striatal dopamine predicts outcome-specific reversal learning and its sensitivity to dopaminergic drug administration.

2 Feb 2009 Individual variability in reward-based learning has been ascribed to quantitative variation in baseline levels of striatal dopamine. However, direct evidence for this pervasive hypothesis has hitherto been unavailable. We demonstrate that individual ...
rec_pub_19193900-striatal-dopamine-predicts-outcome-specific-reversal-learning.htm


Chronic treatment with Delta(9)-tetrahydrocannabinol impairs spatial memory and reduces zif268 expression in the mouse forebrain.

30 Jan 2009 Few studies have investigated the effects of chronic cannabinoid exposure on memory performance and whether tolerance occurs to cannabinoid-induced memory impairment. Here, we studied the effects of repeated exposure to Delta-tetrahydrocannabinol ...
rec_pub_19179850-chronic-treatment-delta-9-tetrahydrocannabinol-impairs-spatial-memory.htm


Logical recoding of S-R rules can reverse the effects of spatial S-R correspondence.

30 Jan 2009 Two experiments investigated competing explanations for the reversal of spatial stimulus-response (S-R) correspondence effects (i.e., Simon effects) with an incompatible S-R mapping on the relevant, nonspatial dimension. Competing explanations were ...
rec_pub_19304615-logical-recoding-s-r-rules-reverse-effects-spatial-s-r-correspondence.htm

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