Fast responses to images of animate and inanimate objects in the nonhuman primate amygdala
| Autor: | Evy Cleeren, Peter Janssen, Ivo D. Popivanov, W. Van Paesschen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Male
0301 basic medicine genetic structures lcsh:Medicine FACES Local field potential FEAR Stimulus (physiology) Biology MACAQUE Amygdala Article PATHWAY 03 medical and health sciences 0302 clinical medicine Reaction Time medicine Animals CONNECTIONS Visual Pathways lcsh:Science Visual Cortex Science & Technology Multidisciplinary CORTICES lcsh:R Cognitive neuroscience Macaca mulatta Nonhuman primate Multidisciplinary Sciences 030104 developmental biology medicine.anatomical_structure SELECTIVITY Pattern Recognition Visual Fixation (visual) Neuronal physiology Science & Technology - Other Topics SHAPE lcsh:Q Visual system Neuroscience 030217 neurology & neurosurgery psychological phenomena and processes |
| Zdroj: | Scientific Reports Scientific Reports, Vol 10, Iss 1, Pp 1-11 (2020) |
| ISSN: | 2045-2322 |
| Popis: | Visual information reaches the amygdala through the various stages of the ventral visual stream. There is, however, evidence that a fast subcortical pathway for the processing of emotional visual input exists. To explore the presence of this pathway in primates, we recorded local field potentials in the amygdala of four rhesus monkeys during a passive fixation task showing images of ten object categories. Additionally, in one of the monkeys we also obtained multi-unit spiking activity during the same task. We observed remarkably fast medium and high gamma responses in the amygdala of the four monkeys. These responses were selective for the different stimulus categories, showed within-category selectivity, and peaked as early as 60 ms after stimulus onset. Multi-unit responses in the amygdala were lagging the gamma responses by about 40 ms. Thus, these observations add further evidence that selective visual information reaches the amygdala of nonhuman primates through a very fast route. ispartof: SCIENTIFIC REPORTS vol:10 issue:1 ispartof: location:England status: published |
| Databáze: | OpenAIRE |
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