Abstract：
:The responses of 80 amygdaloid neurons to the four basic taste (sucrose, NaCl, HCl and quinine hydrochloride), thermal (5 degrees C, 20 degrees C and 40 degrees C) and tactile (brushing) stimuli applied to the anterior part of the tongue were recorded in anesthetized rats. About 90% of the taste-sensitive amygdaloid neurons responded to thermal and/or tactile stimulations of the tongue as well, and some of them showed convergent responses to tactile stimulation of various parts of the body and to acoustic stimulation. Most (86%) amygdaloid taste-sensitive neurons showed a phasic pattern of excitatory response lasting 1-2 s after onset of stimulation with the broad breadth of tuning to the four taste stimuli. About 35% of the neurons showed monotonic increasing responses with increasing NaCl concentration. The rest of the neurons showed complex intensity-response function. The amygdaloid neurons could be grouped into classes based on their best responsive stimulus, and the response profiles of those neurons showed relative regularity when the four stimuli were hedonically ordered from most to least preferred (i.e., sucrose, NaCl, HCl, quinine). Across-neuron correlations between magnitudes of responses to pairs of the four basic taste stimuli have suggested a tendency that taste information is processed in a hedonic dimension in the amygdala. The neurons in the central (Ce) nucleus showed some differential taste responses from those in other amygdaloid nuclei, i.e., about half of the Ce neurons showed tonic responses, and the across-neuron correlation coefficients in the Ce neurons were much higher than those in the non-Ce neurons.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Azuma S,Yamamoto T,Kawamura Ydoi
10.1007/BF00237437subject
Has Abstractpub_date
1984-01-01 00:00:00pages
12-22issue
1eissn
0014-4819issn
1432-1106journal_volume
56pub_type
杂志文章abstract：:Single cell activity was recorded in area 18 during optokinetic nystagmus (OKN) in awake cats. The search coil technique was used to record the horizontal and vertical eye movements. Cells showing direction specific responses to a moving large area random dot pattern (70%) were tested with different velocities in the ...
journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00231138
更新日期：1984-01-01 00:00:00
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journal_title：Experimental brain research
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00228742
更新日期：1994-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2017-04-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
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更新日期：1988-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：1986-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 临床试验,杂志文章
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更新日期：1997-10-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
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更新日期：1980-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
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更新日期：1989-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00230934
更新日期：1992-01-01 00:00:00
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更新日期：2010-07-01 00:00:00
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doi：10.1007/BF00229549
更新日期：1996-09-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236307
更新日期：1987-01-01 00:00:00
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journal_title：Experimental brain research
pub_type： 杂志文章
doi：10.1007/BF00236214
更新日期：1987-01-01 00:00:00
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更新日期：1996-12-01 00:00:00
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更新日期：2012-03-01 00:00:00
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更新日期：2010-05-01 00:00:00
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更新日期：1998-03-01 00:00:00
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更新日期：2001-02-01 00:00:00
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更新日期：1996-05-01 00:00:00
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pub_type： 临床试验,杂志文章
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更新日期：2008-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/BF00235615
更新日期：1985-01-01 00:00:00
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更新日期：2004-11-01 00:00:00
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journal_title：Experimental brain research
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更新日期：2018-10-01 00:00:00
