Reversal Learning (Latest Articles)

Latest indexed articles for 'Reversal Learning'

Articles 21 to 30 of 200:

A role for dopamine D2 receptors in reversal learning.

May 2009 Reversal learning has been shown to require intact serotonergic innervation of the forebrain neocortex. Whether dopamine acting through D2 receptors plays a complementary role in this anatomic area is still unclear. Here we show that mice lacking ...
rec_pub_19401217-a-role-dopamine-d2-receptors-reversal-learning.htm

Sensory-specific associations in flavor-preference reversal learning.

29 Apr 2009 In two experiments, we examined the effect of reversal learning on the status of initially learned associations. In Experiment 1, thirsty rats were first taught to associate one flavor with sucrose and another flavor with Polycose. These relations ...
rec_pub_19380895-sensory-specific-associations-flavor-preference-reversal-learning.htm

The effect of blinks and saccadic eye movements on visual reaction times.

29 Apr 2009 Vision is suppressed during blinks and saccadic eye movements. We hypothesized that visual reaction times (RTs) in a vigilance test would be significantly increased when a blink or a saccade happened to coincide with the stimulus onset. Thirty ...
rec_pub_19429958-the-effect-blinks-saccadic-eye-movements-visual-reaction-times.htm

Setting goals to switch between tasks: effect of cue transparency on children's cognitive flexibility.

29 Apr 2009 Three experiments examined the difficulty of translating cues into verbal representations of task goals by varying the degree of cue transparency (auditory transparent cues, visual transparent cues, visual arbitrary cues) in the Advanced Dimensional ...
rec_pub_19413431-setting-goals-switch-tasks-effect-cue-transparency-children-s.htm

Testing the social dog hypothesis: are dogs also more skilled than chimpanzees in non-communicative social tasks?

15 Apr 2009 Relative to non-human primates, domestic dogs possess a number of social skills that seem exceptional-particularly in solving problems involving cooperation and communication with humans. However, the degree to which dogs' unusual skills are ...
rec_pub_19376207-testing-social-dog-hypothesis-dogs-skilled-chimpanzees-non.htm

Dopamine release in dissociable striatal subregions predicts the different effects of oral methylphenidate on reversal learning and spatial working memory.

13 Apr 2009 Previous data suggest that methylphenidate can have variable effects on different cognitive tasks both within and between individuals. This is thought to be underpinned by inverted U-shaped relationships between cognitive performance and ...
rec_pub_19369539-dopamine-release-dissociable-striatal-subregions-predicts-different.htm

Learning to ignore: acquisition of sustained attentional suppression.

30 Mar 2009 We examined whether the selection mechanisms committed to the suppression of ignored stimuli can be modified by experience to produce a sustained, rather than transient, change in behavior. Subjects repeatedly ignored the shape of stimuli, while ...
rec_pub_19293116-learning-ignore-acquisition-sustained-attentional-suppression.htm

Reading habits for both words and numbers contribute to the SNARC effect.

30 Mar 2009 This study compared the spatial representation of numbers in three groups of adults: Canadians, who read both English words and Arabic numbers from left to right; Palestinians, who read Arabic words and Arabic-Indic numbers from right to left; and ...
rec_pub_19293102-reading-habits-words-numbers-contribute-snarc-effect.htm

Co-occurrence of sequential and practice effects in the Simon task: Evidence for two independent mechanisms affecting response selection.

30 Mar 2009 The Simon effect refers to the observation that responses to a relevant stimulus dimension are faster and more accurate when the stimulus and response spatially correspond than when they do not, even though stimulus position is irrelevant. Recent ...
rec_pub_19246350-co-occurrence-sequential-practice-effects-simon-task-evidence-two.htm

On the minimization of task switch costs following long-term training.

30 Mar 2009 Flexible, context-dependent linkages between stimulus and response are fundamental to adaptive behavior. In the present article, we evaluate the limits of this flexibility by exploring the asymptotic efficiency of people's ability to switch between ...
rec_pub_19304641-on-minimization-task-switch-costs-following-long-term-training.htm

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