Literaturnachweis - Detailanzeige
| Autor/inn/en | Hammerer, Dorothea; Eppinger, Ben |
|---|---|
| Titel | Dopaminergic and Prefrontal Contributions to Reward-Based Learning and Outcome Monitoring during Child Development and Aging |
| Quelle | In: Developmental Psychology, 48 (2012) 3, S.862-874 (13 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0012-1649 |
| DOI | 10.1037/a0027342 |
| Schlagwörter | Brain; Rewards; Child Development; Brain Hemisphere Functions; Metabolism; Cognitive Processes; Aging (Individuals); Age Differences; Adults; Children; Neurological Impairments; Cognitive Ability; Developmental Psychology |
| Abstract | In many instances, children and older adults show similar difficulties in reward-based learning and outcome monitoring. These impairments are most pronounced in situations in which reward is uncertain (e.g., probabilistic reward schedules) and if outcome information is ambiguous (e.g., the relative value of outcomes has to be learned). Furthermore, whereas children show a greater sensitivity to external outcome information, older adults focus less on a rapid differentiation of rewarding outcomes. In this article, we review evidence for the idea that these phenomenologically similar impairments in learning and outcome monitoring in children and older adults can be attributed to deficits in different underlying neurophysiological mechanisms. We propose that in older adults learning impairments are the result of reduced dopaminergic projections to the ventromedial prefrontal cortex, which lead to less differentiated representations of reward value. In contrast, in children, impairments in learning can be primarily attributed to deficits in executive control, which may be due to a protracted development of the dorsal medial and lateral prefrontal cortices. We think that this framework maps well onto recent neurophysiological models of reward processing and is plausible from a broader developmental perspective. (Contains 2 figures.) (As Provided). |
| Anmerkungen | American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2017/4/10 |
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