Abstract：
:Salivary alpha amylase (sAA) has been proposed as a marker of autonomic nervous system activity. Few studies have examined sAA basal activity and reactivity in naturalistic settings, or developmental changes in sAA. In 50 adolescents, diary-reported moods and sAA levels were gathered across two typical weekdays. As in adults, basal sAA levels were low at waking and increased across the day. More advanced pubertal development was associated with higher waking sAA levels; males had smaller sAA increases across the day. High arousal positive emotions (feeling strong, active, excited) were associated with acute sAA increases; high arousal negative emotions (angry, stressed, nervous, worried) predicted sAA increases among youth with high average levels of these emotions. Findings suggest that basal sAA levels increase with puberty, and that acute sAA increases may reflect levels of emotional arousal, including high arousal positive emotions, rather than being specific to stress or emotions of negative valence.
journal_name
Biol Psycholjournal_title
Biological psychologyauthors
Adam EK,Till Hoyt L,Granger DAdoi
10.1016/j.biopsycho.2011.07.007subject
Has Abstractpub_date
2011-12-01 00:00:00pages
170-3issue
2-3eissn
0301-0511issn
1873-6246pii
S0301-0511(11)00186-4journal_volume
88pub_type
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