Predictive value and reward in implicit classification learning
| Autor: | Hans-Otto Karnath, Judith M. Lam, Tobias Wächter, Andreas R. Luft, Christoph Globas |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
physiology [Feedback
Psychological] Adult Male Dopamine Feedback Psychological Internal model Context (language use) Nucleus Accumbens methods [Brain Mapping] physiology [Brain] Reward physiology [Dopamine] Predictive Value of Tests Cerebellum Negative feedback medicine Humans Learning Radiology Nuclear Medicine and imaging ddc:610 physiology [Learning] Research Articles Aged Aged 80 and over Brain Mapping Probabilistic classification physiology [Cerebellum] Radiological and Ultrasound Technology medicine.diagnostic_test physiology [Somatosensory Cortex] Motor Cortex Brain Somatosensory Cortex physiology [Nucleus Accumbens] Middle Aged Magnetic Resonance Imaging Implicit learning Functional imaging medicine.anatomical_structure physiology [Motor Cortex] Neurology Female Neurology (clinical) Anatomy Functional magnetic resonance imaging Psychology Cognitive psychology Motor cortex |
| Zdroj: | Hum Brain Mapp Human brain mapping 34(1), 176-185 (2012). doi:10.1002/hbm.21431 |
| ISSN: | 1065-9471 |
| DOI: | 10.1002/hbm.21431 |
| Popis: | Learning efficacy depends on its emotional context. The contents learned and the feedback received during training tinges this context. The objective here was to investigate the influence of content and feedback on the efficacy of implicit learning and to explore using functional imaging how these factors are processed in the brain. Twenty‐one participants completed 150 trials of a probabilistic classification task (predicting sun or rain based on combinations of playing cards). Smileys or frowneys were presented as feedback. In 10 of these subjects, the task was performed during functional magnetic resonance imaging. Card combinations predicting sun were remembered better than those predicting rain. Similarly, positive feedback fortified learning more than negative feedback. The presentation of smileys recruited bilateral nucleus accumbens, sensorimotor cortex, and posterior cingulum more than negative feedback did. The higher the predictive value of a card combination, the more activation was found in the lateral cerebellum. Both context and feedback influence implicit classification learning. Similar to motor skill acquisition, positive feedback during classification learning is processed in part within the sensorimotor cortex, potentially reflecting the activation of a dopaminergic projection to motor cortex (Hosp et al., 2011). Activation of the lateral cerebellum during learning of combinations with high predictive value may reflect the formation of an internal model. Hum Brain Mapp, 2013. © 2012 Wiley Periodicals, Inc. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|