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ELECTRICAL EXCITATION ON THE CEREBRAL CORTEX BY GUSTATORY STIMULATION REPORT 1. WIDESPREAD EVOCATION TYPE OF POTENTIALS OF THE CEREBRAL CORTEX BY GUSTATORY STIMULATION
Author(s) -
Inanaga Kazutoyo,
Nakao Hiroyuki,
Fuchiwaki Hiroshi
Publication year - 1953
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/j.1440-1819.1953.tb01267.x
Subject(s) - stimulation , cerebral cortex , neuroscience , cats , chemistry , evocation , cortex (anatomy) , electroencephalography , psychology , anesthesia , medicine , sociology , anthropology
Summary The mode of electrical excitation on the cerebral cortex as response to chemical stimulation of the tongue in anesthetized cats were investigated. Under certain circumstances, wide‐spread evocation of potentials were observed, while the effect of anesthesia seemed to be very essential in these experiments. Under these special circumstances, the effect of concentration, temperature and quality of the test solution on the extent of electrical excitability was investigated. High concentration of solution produced larger deflections than with lowered ones, and change in temperature seemed to alter the extent of electrical excitability. The response to sweet substances was negligibly slight compared with that elicited by salty substances. This wide‐spread response seems to be similar in essence to the “secondary discharge” described by Forbes and Morrison .