Abstract:
:To investigate the functional organization in the monkey inferotemporal cortex, which is the last exclusively visual area along the ventral visual cortical pathway, optical imaging based on intrinsic signals was carried out. We first conducted single-cell recordings with microelectrodes and determined the features critical for the activation of single cells. For the subsequent optical imaging, each critical feature was presented, which evoked multiple dark spots. Individual spots were approximately 0.5 mm in diameter and one of them covered the site of the electrode penetration at which the particular critical feature had been determined. The degree of stimulus selectivity varied from spot to spot, and from region to region even within a spot. Some regions were activated only by one of 12- 16 stimuli, while others by more than three stimuli. There were spots specifically activated by faces, and the position of activation spot changed gradually along the cortical surface as the stimulus face was rotated in depth. The length of the overall region along the direction of shift of these spots was approximately 1 mm. These results confirm the regional clustering of cells with similar stimulus selectivity and suggest larger units in which some parameters of object features are continuously mapped.
journal_name
Neurosci Resjournal_title
Neuroscience researchauthors
Wang G,Tanifuji M,Tanaka Kdoi
10.1016/s0168-0102(98)00062-5subject
Has Abstractpub_date
1998-09-01 00:00:00pages
33-46issue
1eissn
0168-0102issn
1872-8111pii
S0168-0102(98)00062-5journal_volume
32pub_type
杂志文章abstract::Subcortical vascular dementia (SVD) is a small vessel disease with dementia that exhibits relatively uniform clinical and pathological features and constitutes approximately half of vascular dementia (VaD) cases. This subtype is further classified into Binswanger's disease and multiple lacunar infarctions. The former ...
journal_title:Neuroscience research
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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journal_title:Neuroscience research
pub_type: 临床试验,杂志文章
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journal_title:Neuroscience research
pub_type: 杂志文章
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更新日期:1998-12-01 00:00:00
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pub_type: 杂志文章
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