Abstract:
:Age and sleep both affect emotional functioning. Since sleep patterns change over the lifespan, we investigated the effects of short sleep and age on empathic responses. In a randomized cross-over experimental design, healthy young and older volunteers (n = 47 aged 20-30 years and n = 39 aged 65-75 years) underwent functional magnetic resonance imaging (fMRI) after normal sleep or night sleep restricted to 3 hours. During fMRI, participants viewed pictures of needles pricking a hand (pain) or Q-tips touching a hand (control), a well-established paradigm to investigate empathy for pain. There was no main effect of sleep restriction on empathy. However, age and sleep interacted so that sleep restriction caused increased unpleasantness in older but not in young participants. Irrespective of sleep condition, older participants showed increased activity in angular gyrus, superior temporal sulcus and temporo-parietal junction compared to young. Speculatively, this could indicate that the older individuals adopted a more cognitive approach in response to others' pain. Our findings suggest that caution in generalizability across age groups is needed in further studies of sleep on social cognition and emotion.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Tamm S,Nilsonne G,Schwarz J,Lamm C,Kecklund G,Petrovic P,Fischer H,Åkerstedt T,Lekander Mdoi
10.1038/s41598-017-12098-9subject
Has Abstractpub_date
2017-09-25 00:00:00pages
12236issue
1issn
2045-2322pii
10.1038/s41598-017-12098-9journal_volume
7pub_type
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