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  • Title: [Electrographic correlates of "inner states" caused by positive conditioned stimuli in the course of instrumental conditioning in dogs].
    Author: Dumenko NV, Kozlov MK.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 2004; 54(3):352-62. PubMed ID: 15326950.
    Abstract:
    Energy characteristics (power spectra) of short-term (less than 1 s) EEG-reactions were studied in dogs in the course of instrumental conditioning. These reactions were observed in different areas of the cortex during selective attention in response to positive conditioned stimuli. They immediately preceded strong blow with a paw on the pedal of feeding cup and taking the reward. The EEG power at these moments was 1.5-3 times higher than the baseline EEG power level in a prestimulus period. The high-frequency structure of corresponding EEG reactions comprised discrete individual spectral peaks both in traditional (1-30 Hz) and gamma (30-80 Hz) ranges and higher-frequency components (80-200 Hz) as well. In some cases, the higher-frequency components (80-200 Hz) were most pronounced.
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