Skip to main content

Suppression-induced forgetting diminishes following a delay of either sleep or wake

Davidson, Per, Hellerstedt, Robin, Jönsson, Peter, Johansson, Mikael (2019) Suppression-induced forgetting diminishes following a delay of either sleep or wake. Journal of Cognitive Psychology, 32 (1). pp. 4-26. ISSN 2044-5911. E-ISSN 2044-592X. (doi:10.1080/20445911.2019.1705311) (KAR id:79989)

PDF Publisher pdf
Language: English

Download (2MB) Preview
[thumbnail of Suppression induced forgetting diminishes following a delay of either sleep or wake.pdf]
This file may not be suitable for users of assistive technology.
Request an accessible format
Official URL


We investigated the duration of suppression-induced forgetting (SIF), and the extent to which retrieval suppression differs between negative and neutral memories. We further examined if SIF was differently affected by sleep versus wake during the delay interval between retrieval suppression and re-test. Fifty participants first learned to associate neutral words with either neutral or negative images. Then, a subset of the words was shown again, and participants were asked to either recall (Think), or to suppress retrieval of (No-Think) the associated images. Finally, a memory test for all items was performed either immediately after the Think/No-Think (T/NT) phase (No Delay), or after a 3.5 h delay interval containing either sleep or wake. Results revealed a SIF effect only in the No Delay group, indicating that this forgetting effect dissipates already after a 3.5 h delay interval. Negative items were experienced as more intrusive than neutral ones during the T/NT phase.

Item Type: Article
DOI/Identification number: 10.1080/20445911.2019.1705311
Uncontrolled keywords: Sleep, forgetting, Think/No-Think, memory suppression, intrusions
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Divisions > Division of Human and Social Sciences > School of Psychology
Depositing User: Robin Hellerstedt
Date Deposited: 08 Feb 2020 16:14 UTC
Last Modified: 16 Feb 2021 14:11 UTC
Resource URI: (The current URI for this page, for reference purposes)
  • Depositors only (login required):


Downloads per month over past year