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Titolo:
Where is 'dorsal V4' in human visual cortex? Retinotopic, topographic and functional evidence
Autore:
Tootell, RBH; Hadjikhani, N;
Indirizzi:
Massachusetts Gen Hosp, Dept Radiol, Nucl Magnet Resonance Ctr, Charlestown, MA 02129 USA Massachusetts Gen Hosp Charlestown MA USA 02129 Charlestown, MA 02129 USA
Titolo Testata:
CEREBRAL CORTEX
fascicolo: 4, volume: 11, anno: 2001,
pagine: 298 - 311
SICI:
1047-3211(200104)11:4<298:WI'VIH>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
MONKEY PRESTRIATE CORTEX; SURFACE-BASED ANALYSIS; HUMAN CEREBRAL-CORTEX; HUMAN OCCIPITAL LOBE; MACAQUE MONKEY; AREA V4; RHESUS-MONKEY; CORTICAL CONNECTIONS; STRIATE CORTEX; EXTRASTRIATE CORTEX;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
104
Recensione:
Indirizzi per estratti:
Indirizzo: Tootell, RBH Massachusetts Gen Hosp, Dept Radiol, Nucl Magnet Resonance Ctr, Charlestown, MA 02129 USA Massachusetts Gen Hosp Charlestown MA USA 02129 MA 02129 USA
Citazione:
R.B.H. Tootell e N. Hadjikhani, "Where is 'dorsal V4' in human visual cortex? Retinotopic, topographic and functional evidence", CEREB CORT, 11(4), 2001, pp. 298-311

Abstract

In flattened human visual cortex, we defined the topographic homologue of macaque dorsal V4 (the 'V4d topologue'), based on neighborhood relations among visual areas (i.e. anterior to V3A, posterior to MT+, and superior to ventral V4). Retinotopic functional magnetic resonance imaging (fMRI) data suggest that two visual areas ('LOC' and 'LOP') are included within this V4dtopologue. Except for an overall bias for either central or peripheral stimuli (respectively), the retinotopy within LOC and LOP was crude or nonexistent. Thus the retinotopy in the human V4d topologue differed from previousreports in macaque V4d. Unlike some previous reports in macaque V4d, the human V4d topologue was not significantly color-selective. However, the V4d topologue did respond selectively to kinetic motion boundaries, consistent with previous human fMRI reports. Because striking differences were found between the retinotopy and functional properties of the human topologues of 'V4v' and 'V4d', it is unlikely that these two cortical regions are subdivisions of a singular human area 'V4'.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 06:33:29