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Functional organization and hemispheric comparison of primary auditory cortex in the common marmoset (Callithrix jacchus)
Journal of comparative neurology (1911), 2005-07, Vol.487 (4), p.391-406
Philibert, Bénédicte
Beitel, Ralph E.
Nagarajan, Srikantan S.
Bonham, Ben H.
Schreiner, Christoph E.
Cheung, Steven W.
2005
Details
Autor(en) / Beteiligte
Philibert, Bénédicte
Beitel, Ralph E.
Nagarajan, Srikantan S.
Bonham, Ben H.
Schreiner, Christoph E.
Cheung, Steven W.
Titel
Functional organization and hemispheric comparison of primary auditory cortex in the common marmoset (Callithrix jacchus)
Ist Teil von
Journal of comparative neurology (1911), 2005-07, Vol.487 (4), p.391-406
Ort / Verlag
Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Erscheinungsjahr
2005
Link zum Volltext
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
Hemispheric fine‐grain maps of primary auditory cortex (AI) were derived from microelectrode penetrations in the temporal gyrus of the common marmoset (Callithrix jacchus) to 1) compare the functional organization of AI in the marmoset with other mammalian species and 2) compare the right and left AI maps in individual monkeys. Frequency receptive fields (FRFs) were recorded with pure tones. Five FRF parameters were analyzed: characteristic frequency, threshold, sharpness of tuning 10 dB and 40 dB above threshold, and minimum response latency. The present study confirms that the functional organization of AI is characterized by a robust tonotopic frequency gradient overlaid with spatially clustered distributions of other FRF parameters. Globally, this functional organization of AI in the common marmoset is similar to that in other mammalian species. With respect to within‐subject hemispheric comparisons of the five FRF parameters, a coherent pattern of asymmetry is not evident in marmoset AI. The overall results indicate that the basic functional organization between hemispheres is similar but not identical. J. Comp. Neurol. 487:391–406, 2005. © 2005 Wiley‐Liss, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 0021-9967
eISSN: 1096-9861
DOI: 10.1002/cne.20581
Titel-ID: cdi_proquest_miscellaneous_19414835
Format
–
Schlagworte
Acoustic Stimulation - methods
,
Animals
,
asymmetry
,
Auditory Cortex - anatomy & histology
,
Auditory Cortex - physiology
,
Auditory Pathways - physiology
,
Auditory Perception - physiology
,
Auditory Threshold - physiology
,
Brain Mapping
,
Callithrix - anatomy & histology
,
Callithrix - physiology
,
Cluster Analysis
,
Dose-Response Relationship, Radiation
,
Evoked Potentials, Auditory - physiology
,
Female
,
frequency receptive field
,
Functional Laterality - physiology
,
Male
,
monkey
,
Monte Carlo Method
,
pure tone
,
Reaction Time - physiology
,
topography
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