Abstract
The evoked potential seen in the superior colliculus of the cat following stimulation of the optic nerve is the manifestation of a dipole field of a uniformly excited cellular population. Bipolar electrodes were permanently oriented in the dipole field so that the electrode tips were located in opposite poles of the field straddling the zero isopotential surface. Following electrical stimulation, the bipolarly recorded evoked potentials were found to be frequency modulated, with three input conditions capable of affecting the frequency. Retinal illumination, electrical stimulation intensity, and the behavioral state of the animal caused characteristic changes in the frequency. In particular, the degree of arousal of the animal, caused by acoustic, tactile, nociceptive, olfactory, or visual stimuli, was found to be related to the oscillatory frequency. We concluded that the superior colliculus plays a role in the behavior of the animal, especially during arousal or attentiveness, and is not restricted to an absolute visual function.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
