. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. Fig. 20 Localizations of microclectrode points yielding various effects. I. Point in or near maninnllo thalamic tract yielding reinforcement to contmiioiis firing (schematically symbolized by unit- sinewave pairings followed by repetitive vmit discharge). II. Point in fimbria yielding rein- forcement to continuous firing, plus three cortical points yielding negative results. III. Point in anterior rhinencephalon which augmented firing rate greatly during reintorccment procedure. IV. Point in hippocampus wh
. Brain mechanisms and learning, a symposium. Psychophysiology; Learning, Psychology of. Fig. 20 Localizations of microclectrode points yielding various effects. I. Point in or near maninnllo thalamic tract yielding reinforcement to contmiioiis firing (schematically symbolized by unit- sinewave pairings followed by repetitive vmit discharge). II. Point in fimbria yielding rein- forcement to continuous firing, plus three cortical points yielding negative results. III. Point in anterior rhinencephalon which augmented firing rate greatly during reintorccment procedure. IV. Point in hippocampus where reinforcement caused firing after the stimulus; and point in mammillo-thalamic tract region of thalamus where reinforcement yielded continuous firing. V. Point in dorsal posterior hypothalamus where stimulation elicited unit firings. larger integration which we proceed to condition. However, wc do have anecdotes which suggest that a unit discharge started by pressure (as our microclectrode enters an area) can be maintained active by reinforcement. If stimulation with the microclectrode can be performed systematically, it will at least be shown whether the unit response needs to be started by some afferent system to be Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Council for International Organizations of Medical Sciences; Fessard, A. (Alfred); Delafresnaye, J. F. (Jean Francisque), 1919-. Springfield, Ill. , Thomas
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