Feature selectivity in area 21a of the cat
Autor(en): | Kayser, C Konig, P |
Stichwörter: | BINOCULAR INTERACTIONS; CELLS; feature tuning; local field potential; Neurosciences; Neurosciences & Neurology; POTENTIALS; RETINOTOPIC ORGANIZATION; stimulus locking; V1; ventral pathway; VI; VISUAL-CORTEX | Erscheinungsdatum: | 2006 | Herausgeber: | LIPPINCOTT WILLIAMS & WILKINS | Journal: | NEUROREPORT | Volumen: | 17 | Ausgabe: | 8 | Startseite: | 809 | Seitenende: | 812 | Zusammenfassung: | We compared the feature tuning of neuronal activity in area 21a with the tuning in areas 17/18. Local field potentials and multi-unit activity recorded in alert animals showed similar selectivity to orientation in both areas, higher selectivity to spatial frequencies in areas 17/18 and higher selectivity and tuning significance to temporal frequencies in areas 17/18. In addition, only at sites in areas 17/18 did the local field potential exhibit locking to a horizontal motion pattern extracted from a natural movie. These results suggest that area 21a is concerned with the analysis of spatial features but lacks a faithful representation of temporal features. Hence, they foster the hypothesis that cortical area 21a is part of a ventral form pathway. |
ISSN: | 09594965 | DOI: | 10.1097/01.wnr.0000221842.50749.95 |
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geprüft am 03.05.2024