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Reward and Aversive Stimuli Produce Similar Nonphotic Phase Shifts
- Source :
- Behavioral Neuroscience. 118:131-137
- Publication Year :
- 2004
- Publisher :
- American Psychological Association (APA), 2004.
-
Abstract
- Circadian rhythms in rodents respond to arousing, nonphotic stimuli that contribute to daily patterns of entrainment. To examine whether the motivational significance of a stimulus is important for eliciting nonphotic circadian phase shirts in Syrian hamsters (Mesocricetus auratus), the authors compared responses to a highly rewarding stimulus (lateral hypothalamic brain stimulation reward [BSR]) and a highly aversive stimulus (footshock). Animals were housed on a 14:10-hr light-dark cycle until test day, when they were given a 1-hr BSR session (trained animals) or a 1-mA electric footshock at 1 of 8 circadian times, and were maintained in constant dark thereafter. Both BSR pulses and footshock produced nonphotic phase response curves. These results support the hypothesis that arousal resulting from the motivational significance of a stimulus is a major factor in nonphotic phase shifts.
- Subjects :
- Male
Electroshock
Light
Mesocricetus
genetic structures
Darkness
Stimulus (physiology)
Electric Stimulation
Circadian Rhythm
Developmental psychology
Arousal
Behavioral Neuroscience
Reward
Cricetinae
Avoidance Learning
Animals
Brain stimulation reward
Circadian rhythm
Aversive Stimulus
Entrainment (chronobiology)
Self-administration
Psychology
Neuroscience
Electrical brain stimulation
Subjects
Details
- ISSN :
- 19390084 and 07357044
- Volume :
- 118
- Database :
- OpenAIRE
- Journal :
- Behavioral Neuroscience
- Accession number :
- edsair.doi.dedup.....670f5e358f577a3794cc1fe9d0444ee7
- Full Text :
- https://doi.org/10.1037/0735-7044.118.1.131