Time of day affects implicit memory for unattended stimuli

Rothen, Nicolas; Meier, Beat (2016). Time of day affects implicit memory for unattended stimuli. Consciousness and cognition, 46, pp. 1-6. Elsevier 10.1016/j.concog.2016.09.012

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We investigated whether circadian arousal affects perceptual priming as a function of whether stimuli were attended or ignored during learning. We tested 160 participants on- and off-peak with regards to their circadian arousal. In the study phase, they were presented with two superimposed pictures in different colours. They had to name the pictures of one colour while ignoring the others. In the test phase, they were presented with the same and randomly intermixed new pictures. Each picture was presented in black colour in a fragment completion task. Priming was measured as the difference in fragmentation level at which the pictures from the study phase were named compared to the new pictures. Priming was stronger for attended than ignored pictures. Time of day affected priming only for ignored pictures, with stronger priming effects off-peak than on-peak. Thus, circadian arousal seems to favour the encoding of unattended materials specifically at off-peak.

Item Type:

Journal Article (Original Article)

Division/Institute:

07 Faculty of Human Sciences > Institute of Psychology > Psychological and Behavioral Health

UniBE Contributor:

Rothen, Nicolas, Meier, Beat

Subjects:

100 Philosophy > 150 Psychology
600 Technology > 610 Medicine & health

ISSN:

1053-8100

Publisher:

Elsevier

Language:

English

Submitter:

Nicolas Rothen

Date Deposited:

06 Sep 2017 08:27

Last Modified:

29 Mar 2023 23:35

Publisher DOI:

10.1016/j.concog.2016.09.012

PubMed ID:

27677048

BORIS DOI:

10.7892/boris.98989

URI:

https://boris.unibe.ch/id/eprint/98989

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