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Titolo:
Odor maps in the brain: Spatial aspects of odor representation in sensory surface and olfactory bulb
Autore:
Korsching, SI;
Indirizzi:
Univ Cologne, Inst Genet, D-50674 Cologne, Germany Univ Cologne Cologne Germany D-50674 nst Genet, D-50674 Cologne, Germany
Titolo Testata:
CELLULAR AND MOLECULAR LIFE SCIENCES
fascicolo: 4, volume: 58, anno: 2001,
pagine: 520 - 530
SICI:
1420-682X(200104)58:4<520:OMITBS>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
RECEPTOR CELL RESPONSES; VOLTAGE-SENSITIVE DYE; DISCRIMINATION ABILITY; NEURONAL-ACTIVITY; ANTENNAL LOBES; FUNCTIONAL EXPRESSION; GLOMERULAR LAYER; GENE-EXPRESSION; CHANNEL CATFISH; APIS-MELLIFERA;
Keywords:
olfaction; chemotopic; imaging; olfactory bulb; glomeruli; odor map; combinatorial; coding;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
81
Recensione:
Indirizzi per estratti:
Indirizzo: Korsching, SI Univ Cologne, Inst Genet, Zulpicher Str 47, D-50674 Cologne,Germany Univ Cologne Zulpicher Str 47 Cologne Germany D-50674 rmany
Citazione:
S.I. Korsching, "Odor maps in the brain: Spatial aspects of odor representation in sensory surface and olfactory bulb", CELL MOL L, 58(4), 2001, pp. 520-530

Abstract

The olfactory sense detects and distinguishes a multitude of different odors. Recent progress in molecular as well as physiological approaches has elucidated basic principles of neuronal encoding of odorants, common to insects and vertebrates. The construction of neuronal representations for odors begins with the task of mapping the multidimensional odor space onto the two-dimensional sensory surface, and subsequently onto the olfactory bulb or antennal lobe. A distributed expression of odorant receptors, albeit restricted to subregions of the sensory surface (large, intermediate or small forzebrafish, mouse or drosophila, respectively), ensures a robust representation, insensitive to mechanical insult. Olfactory receptor neurons expressing the same odorant receptors converge to form a receptotopic map in the olfactory bulb or antennal lobe. The emerging coding principle is a chemotopic representation of odorants at the first brain level, realized either as combinatorial or as monospecific representation, depending on the odorant.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 09:48:07