Journal
JOURNAL OF NEUROSCIENCE
Volume 29, Issue 47, Pages 14864-14868Publisher
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.3278-09.2009
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- National Institute of Mental Health [P50-MH-072850]
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Models of visual emotional perception suggest a reentrant organization of the ventral visual system with the amygdala. Using focused functional magnetic resonance imaging in humans with a sampling rate of 100 ms, here we determine the relative timing of emotional discrimination in amygdala and ventral visual cortical structures during emotional perception. Results show that amygdala and inferotemporal visual cortex differentiate emotional from nonemotional scenes similar to 1 s before extrastriate occipital cortex, whereas primary occipital cortex shows consistent activity across all scenes. This pattern of discrimination is consistent with a reentrant organization of emotional perception in visual processing, in which transaction between rostral ventral visual cortex and amygdala originates the identification of emotional relevance.
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