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Napping promotes inter-session habituation to emotional stimuli
Open accessAbstract
The effects of a daytime nap on inter-session habituation to aversive visual stimuli were investigated. Healthy young adult volunteers viewed repeated presentations of highly negative and emotionally neutral (but equally arousing) International Affective Picture System (IAPS) photographs during two afternoon sessions separated by 2.5h. Half of the photographs were shown at both sessions (Repeated Sets) and half differed between sessions (Novel Sets). For each stimulus presentation, evoked skin conductance response (SCR), heart-rate deceleration (HRD) and corrugator supercilii EMG response (EMG), were computed and range corrected using respective maximum session-1 responses. Following each presentation, subjects rated each photograph on dimensions of pleasantness and arousability. During the inter-session interval, Nap subjects had a 120-min polysomnographically monitored sleep opportunity, whereas Wake subjects watched a non-stimulating video. Nap and Wake subjects did not differ in their subjective ratings of photographs. However, for Repeated-Set photographs, Nap subjects demonstrated greater inter-session habituation in SCR and EMG but a trend toward lesser inter-session habituation in HRD. These group differences were absent for Novel-Set photographs. Group differences across all measures were greater for negative stimuli. Occurrence of SWS during the nap was associated with greater inter-session habituation of EMG whereas occurrence of REM was associated with lesser inter-session habituation of SCR to negative stimuli. Sleep may therefore promote emotional adjustment at the level of somatic responses. Physiological but not subjective inter-session habituation to aversive images was enhanced by a daytime nap.
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“In the context of fear learning, sleep promoted the generalization of extinction learning (878), increased intersession habituation to emotional stimuli (879), and in both humans and rodents, the deprivation of REM sleep impaired fear extinction (421, 1084, 1133).”
From About Sleep's Role in Memory (2013) · cites this paper as [879]
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Emotional Processing in a Nap Paradigm: The Role of Sleep Stages in Memory and Reactivity
Colombo, C., Baldassarri, A., Granziol, U., Ongaro, J., Viselli, L., Ferrara, M., D’Atri, A., & Cellini, N. (2026) · Psychophysiology · doi:10.1111/psyp.70414
Metadata
- Authors
- Pace-Schott, E. F., Shepherd, E., Spencer, R. M. C., Marcello, M., Tucker, M., Propper, R. E., & Stickgold, R.
- Affiliations
- Beth Israel Deaconess Medical Center (US)
- University of Massachusetts Amherst (US)
- Merrimack College (US)
- Corresponding author
- Pace-Schott, Edward F.
- Venue
- Neurobiology of Learning and Memory
- Publisher
- Elsevier BV
- Published
- 2011-01
- Volume
- 95
- Issue
- 1
- Pages
- 24-36
- ISSN
- 1074-7427 (ISSN-L)
- PMC
- PMC3032361
- OpenAlex
- W2066788567
- Cited by
- 109
- References
- 103
- Citations by year
- 2026: 4 · 2025: 4 · 2024: 5 · 2023: 7 · 2022: 8 · 2021: 6 · 2020: 9 · 2019: 12 · 2018: 7 · 2017: 9 · 2016: 5 · 2015: 11 · 2014: 6 · 2013: 11 · 2012: 4
- FWCI
- 3.10
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Neurobiology of Learning and Memory (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute on Aging (R00AG029710)
- National Institute of Mental Health (MH-48832, R01MH048832)
- National Institute on Drug Abuse (R01DA011744, DA-11744)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
- Keywords
- daytime napping, emotional stimuli, aversive stimuli, skin conductance response, heart rate deceleration, slow-wave sleep, REM sleep, emotional adjustment, International Affective Picture System, emotional arousal
- MeSH terms
- Adolescent, Adult, Arousal, Electromyography, Emotions, Female, Galvanic Skin Response, Habituation, Psychophysiologic, Heart Rate, Humans, Male, Photic Stimulation, Sleep, Polysomnography, Muscle, Skeletal
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