Reversal Learning (Latest Articles)

Latest indexed articles for 'Reversal Learning'

Articles 61 to 70 of 200:

Automatic and controlled response inhibition: associative learning in the go/no-go and stop-signal paradigms.

30 Oct 2008 In 5 experiments, the authors examined the development of automatic response inhibition in the go/no-go paradigm and a modified version of the stop-signal paradigm. They hypothesized that automatic response inhibition may develop over practice when ...
rec_pub_18999358-automatic-controlled-response-inhibition-associative-learning-stop.htm

Neural substrates for reversing stimulus-outcome and stimulus-response associations.

27 Oct 2008 Adaptive goal-directed actions require the ability to quickly relearn behaviors in a changing environment, yet how the brain supports this ability is barely understood. Using functional magnetic resonance imaging and a novel reversal learning ...
rec_pub_18971462-neural-substrates-reversing-stimulus-outcome-stimulus-response.htm

Acetylcholine activity in selective striatal regions supports behavioral flexibility.

24 Oct 2008 Daily living often requires individuals to flexibly respond to new circumstances. There is considerable evidence that the striatum is part of a larger neural network that supports flexible adaptations. Cholinergic interneurons are situated to ...
rec_pub_18845266-acetylcholine-activity-selective-striatal-regions-supports-behavioral.htm

Fast pairs: a visual word recognition paradigm for measuring entrenchment, top-down effects, and subjective phenomenology.

20 Oct 2008 When word pairs having a familiar order are sequentially flashed on a computer in their non-familiar order, (code zip), observers have a strong phenomenology of seeing them in familiar order (zip code). Reversal errors remained frequent even when ...
rec_pub_18948037-fast-pairs-visual-word-recognition-paradigm-measuring-entrenchment.htm

Lesions of the medial striatum in monkeys produce perseverative impairments during reversal learning similar to those produced by lesions of the orbitofrontal cortex.

20 Oct 2008 The ability to switch responding between two visual stimuli based on their changing relationship with reward is dependent on the orbitofrontal cortex (OFC). OFC lesions in humans, monkeys, and rats disrupt performance on a common test of this ...
rec_pub_18945905-lesions-medial-striatum-monkeys-produce-perseverative-impairments.htm

Pre-surgical training ameliorates orbitofrontal-mediated impairments in spatial reversal learning.

13 Oct 2008 We recently reported that orbitofrontal cortical (OFC) lesions impaired reversal learning of an instrumental two-lever spatial discrimination task, a deficit manifested as increased perseveration on the pre-potent response. Here we examine whether ...
rec_pub_18983877-pre-surgical-training-ameliorates-orbitofrontal-mediated-impairments.htm

Planning to break unwanted habits: habit strength moderates implementation intention effects on behaviour change.

9 Oct 2008 Implementation intention formation promotes effective goal striving and goal attainment. However, little research has investigated whether implementation intentions promote behaviour change when people possess strong antagonistic habits. Experiment ...
rec_pub_18851764-planning-break-unwanted-habits-habit-strength-moderates.htm

Dopamine D2/D3 receptor agonist quinpirole impairs spatial reversal learning in rats: investigation of D3 receptor involvement in persistent behavior.

Oct 2008 RATIONALE: Dopamine is strongly implicated in the ability to shift behavior in response to changing stimulus-reward contingencies. OBJECTIVES: We investigated the effects of systemic administration of the D2/D3 receptor agonist quinpirole (0.1, 0.3 ...
rec_pub_18836703-dopamine-d2-d3-receptor-agonist-quinpirole-impairs-spatial-reversal.htm

Task switching in overweight children: effects of acute exercise and age.

29 Sep 2008 The short-term after effects of a bout of moderate aerobic exercise were hypothesized to facilitate children's executive functioning as measured by a visual task-switching test. Sixty-nine children (mean age=9.2 years) who were overweight and ...
rec_pub_18971509-task-switching-overweight-children-effects-acute-exercise-age.htm

Response perseveration and ventral prefrontal sensitivity to reward and punishment in male problem gamblers and smokers.

29 Sep 2008 Pathological gambling (PG) is associated with maladaptive perseverative behavior, but the underlying mechanism and neural circuitry is not completely clear. Here, the hypothesis was tested that PG is characterized by response perseveration and ...
rec_pub_18830241-response-perseveration-ventral-prefrontal-sensitivity-reward.htm

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