Abstract
Rats were operantly conditioned for both increasing and decreasing the amplitude of one component of both visual and somatic sensory evoked potentials. The potentials were recorded in visual cortex, somatic sensory cortex, or nucleus intercollicularis in the midbrain reticular formation. The visual cortical potentials were evoked by shocks to the optic chiasm. The somatic sensory cortical and subcortical potentials were evoked by shocks to the nucleus subcoeruleus of the pontine reticular formation. The evoking stimuli (shocks) were presented at random intervals. The results rule out trivial mediation of operant neural control and are discussed in these terms.
Original language | English (US) |
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Pages (from-to) | 305-317 |
Number of pages | 13 |
Journal | Behavioral Biology |
Volume | 16 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1976 |
Funding
Most currently used performance indicators of operant learning involve familiar muscular responses such as bar presses, key pecks, maze runs, etc. In contrast, operant conditioning of neural activity is a procedure involving conditioned events which are potentially independent of motor activity subserving typical (peripheral) behavioral operants. The advantage of having novel operant response systems available is the possibility of using them to obtain new insights about learning mechanisms. For example, until the recent development of the taste-aversion conditioning literature, theorizing about classical conditioning mechanisms was constrained by the misleading notion of an optimal interstimulus interval of about .5 sec. The taste aversion conditioning phenomenon, with an interstimulus interval of several hours, necessitated a 1A preliminary report of portions of these data was presented at the 5th Annual Meeting of the Society for Neuroscience, New York City, November, 1975. Supported in part by NIH grants 5-50-RR07028 and FR7028-05 and NSF grant 75-17770 to North-western University, (JPR), and NIMH training grants 5TO1MHl1284-06P0 and 5T01MH11284-05 to the Psychology Department, Northwestern University. We thank Drs. P. W. Frey and A. H. Black for comments. Requests for reprints should be addressed to J. Peter Rosenfeld.
ASJC Scopus subject areas
- General Environmental Science
- General Earth and Planetary Sciences