Figure 1
From: Response of SI cortex to ipsilateral, contralateral and bilateral flutter stimulation in the cat
Cat SI and SII optical responses to 25 Hz vibrotactile stimulation of the forepaws. A. View of the cortical surface, showing the vascular pattern and coronal (COR), ansate (ANS), and suprasylvian (SS) sulci. Exposed portions of SI and SII are indicated. Below: Averaged absorbance images for responses evoked by (B) contralateral, (C) ipsilateral and (D) bilateral stimuli. Individual absorbance images were generated by subtracting each prestimulus (reference) image from its corresponding poststimulus image and subsequently dividing by the reference image. Averages are generated by summating the data obtained at a particular frame across trials (in this case, at 5 sec after stimulus onset). Stimulus sites are indicated by figurines. Scale bar is 2 mm. Orientation of images indicated by P (posterior), A (anterior), M (medial) and L (lateral) axes. Components of this figure have been previously reported [4].