The Role of the Lateral Frontal Cortex in Causal Associative Learning: Exploring Preventative and Super-learning
| Autor: | Trevor W. Robbins, Michael R. F. Aitken, Christian Schwarzbauer, Barbara J. Sahakian, David R. Shanks, Danielle C. Turner, Paul C. Fletcher |
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| Rok vydání: | 2004 |
| Předmět: |
Adult
Male Cognitive Neuroscience Brain mapping Article Cellular and Molecular Neuroscience medicine Humans Prefrontal cortex Evoked Potentials Anterior cingulate cortex Associative property Neurons Brain Mapping medicine.diagnostic_test Working memory Novelty Association Learning Magnetic Resonance Imaging Frontal Lobe Associative learning medicine.anatomical_structure Female Psychology Functional magnetic resonance imaging Cognitive psychology |
| Zdroj: | Cerebral Cortex. 14:872-880 |
| ISSN: | 1460-2199 |
| DOI: | 10.1093/cercor/bhh046 |
| Popis: | Prediction error — a mismatch between expected and actual outcome — is critical to associative accounts of inferential learning. However, it has proven difficult to explore the effects of prediction error using functional magnetic resonance imaging (fMRI) while excluding the confounding effects of stimulus novelty and incorrect responses. In this event-related fMRI study we used a three-stage experiment generating preventative- and super-learning conditions. In both cases, it was possible to generate prediction error within a causal associative learning experiment while subtracting the effects of novelty and error. We show that right lateral prefrontal cortex (PFC) activation is sensitive to the magnitude of prediction error. Furthermore, super-learning activation in this region of PFC correlates, across subjects, with the amount learned. We thus provide direct evidence for a brain correlate of the surprise-dependent mechanisms proposed by associative accounts of causal learning. We show that activity in right lateral PFC is sensitive to the magnitude, though not the direction, of the prediction error. Furthermore, its activity is not directly explicable in terms of novelty or response errors and appears directly related to the learning that arises out of prediction error. |
| Databáze: | OpenAIRE |
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