๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

An in vivo model for functional MRI in cat visual cortex

โœ Scribed by Peter Jezzard; Josef P. Rauschecker; Dov Malonek

Book ID
102957456
Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
830 KB
Volume
38
Category
Article
ISSN
0740-3194

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โœฆ Synopsis

A protocol is described for obtaining functional magnetic resonance images in anesthetized cat brain based on the blood oxygenation level dependent (BOLD) contrast mechanism. A visual stimulus was used, which consisted of a high-contrast drifting grating, whose speed and spatial frequency was optimized for cat area 18 (V2). Experiments were conducted at 4.7 Tesla using a gradient echo EPI sequence with a 29-ms echo time, yielding signal changes of between 0.7% and 2% in area 18.

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