Aversive stimulation and reversal learning
نویسندگان
چکیده
منابع مشابه
The neural correlates of aversive auditory stimulation.
Previous neuroimaging studies indicate that the human amygdala activates during exposure to aversive visual, olfactory and gustatory stimuli. To examine amygdala responses to aversive auditory stimuli, we exposed healthy human subjects to unpleasant sounds while regional cerebral blood flow (rCBF) was assayed with O-15 PET. Eight subjects, all of whom described themselves as reactive to aversiv...
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Hypothalamic electrodes can generate positive reinforcement, as shown by self-stimulation, and negative reinforcement shown by stimulation-escape. It was hypothesized that acetylcholine (ACh) is released in the nucleus accumbens during the aversive state that underlies stimulation-escape. If this is correct, escape behavior should lower extracellular ACh. Rats were prepared with microdialysis p...
متن کاملAversive gustatory stimulation activates limbic circuits in humans.
Animal studies implicate the amygdala and its connections in the recognition of aversive stimuli. A recent PET study demonstrated that the human amygdala and left orbitofrontal cortex show substantial increases in regional cerebral blood flow (rCBF) during exposure to aversive odourants. To examine if aversive gustatory stimuli similarly activate these regions, nine healthy women tasted an aver...
متن کاملThe role of the striatum in aversive learning and aversive prediction errors.
Neuroeconomic studies of decision making have emphasized reward learning as critical in the representation of value-driven choice behaviour. However, it is readily apparent that punishment and aversive learning are also significant factors in motivating decisions and actions. In this paper, we review the role of the striatum and amygdala in affective learning and the coding of aversive predicti...
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Page 725 Adult butterflies are capable of associative learning that serves foraging flowers or finding oviposition sites. In experimental paradigms, they learn to extend their proboscis in response to floral orders associated with a sugar reward or to avoid them if paired with bitter substances. Such settings have been used to elucidate the neuronal circuitry and mechanisms underlying the afore...
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ژورنال
عنوان ژورنال: Psychonomic Science
سال: 1969
ISSN: 0033-3131
DOI: 10.3758/bf03336187