Excitotoxic lesions of the amygdala fail to produce impairment in visual learning for auditory secondary reinforcement but interfere with reinforcer devaluation effects in rhesus monkeys.

Journal article

Aspiration lesions of the amygdala were found previously to produce a severe impairment in visual discrimination learning for auditory secondary reinforcement in rhesus monkeys (Gaffan and Harrison, 1987). To determine whether excitotoxic amygdala lesions would also produce this effect, we trained four naive rhesus monkeys on the same task. The monkeys were required to learn 40 new visual discrimination problems per session in a situation in which visual choices were guided by an auditory sec...

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Authors: Málková, L; Gaffan, D; Murray, E

• Publication status: Published
• Journal: Journal of neuroscience : the official journal of the Society for Neuroscience
• Volume: 17
• Issue: 15
• Pages: 6011-6020
• Publication date: 1997-08-01
• EISSN: 1529-2401
• ISSN: 0270-6474
• Language: English
• Keywords: Macaca mulatta; Photic Stimulation; Male; Learning; Amygdala; Female; Acoustic Stimulation; Animals; Reinforcement (Psychology); Discrimination (Psychology)