Amygdala central nucleus lesions attentuate acoustic startle stimulus-evoked heart rate changes in rats
Amygdala central nucleus lesions were used to test the hypothesis that stimulus-evoked heart rate can reflect the development of fear during acoustic startle testing. A 120-dB white noise startle stimulus produced freezing as well as phasic heart rate accelerations and decelerations, and an abrupt d...
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| Veröffentlicht in: | Behavioral neuroscience 1996-04, Vol.110 (2), p.228 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
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| Zusammenfassung: | Amygdala central nucleus lesions were used to test the hypothesis that stimulus-evoked heart rate can reflect the development of fear during acoustic startle testing. A 120-dB white noise startle stimulus produced freezing as well as phasic heart rate accelerations and decelerations, and an abrupt decrease in tonic heart rate, in sham-operated rats. |
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| ISSN: | 0735-7044 1939-0084 |