期刊
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 376, 期 1817, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rstb.2019.0703
关键词
mental imagery; feedback signals; perception
类别
资金
- Australian NHMRC [APP1046198, APP1085404, APP1049596]
- Career Development Fellowship [APP1049596]
- ARC discovery project [DP140101560]
Although research has shown similarities in function and neural mechanisms between imagery and perception, there are still noticeable differences in our experiences of the two. Studying the directional flow of information, different cortical layers in the primary visual cortex, and potential neural mechanisms of modulation versus excitation may help explain why imagery and perception feel distinct.
Despite the past few decades of research providing convincing evidence of the similarities in function and neural mechanisms between imagery and perception, for most of us, the experience of the two are undeniably different, why? Here, we review and discuss the differences between imagery and perception and the possible underlying causes of these differences, from function to neural mechanisms. Specifically, we discuss the directional flow of information (top-down versus bottom-up), the differences in targeted cortical layers in primary visual cortex and possible different neural mechanisms of modulation versus excitation. For the first time in history, neuroscience is beginning to shed light on this long-held mystery of why imagery and perception look and feel so different. This article is part of the theme issue 'Offline perception: voluntary and spontaneous perceptual experiences without matching external stimulation'.
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