Tetris as a Tool for the Reduction of Intrusive Memories

Diplôme Master Tetris as a Tool for the Reduction of Intrusive Memories eng 2026-04-28 2026-04-06 author Musto Federica Irma 985011 director Rimmele Ulrike 784969 72 Intrusive memories are a core symptom of post-traumatic stress reactions and can severely affect emotional well-being. This study examined whether memory reactivation combined with a visuospatial interference task (Tetris) could reduce intrusive memory frequency following exposure to a distressing film, grounded in memory reconsolidation theory. A total of 101 participants were randomly assigned to one of four conditions defined by the presence or absence of Reactivation and Tetris. Intrusion frequency was measured using an Intrusion Diary, with additional measures including the Intrusion Provocation Task, self-reported distress and wakefulness, and anxiety and depression symptoms (HADS-A, HADS-D). A significant Time × Reactivation interaction indicated a reduction in intrusions specifically in the reactivation condition, while no significant effects of Tetris were observed. Self-reported distress varied meaningfully within sessions in response to specific experimental tasks, while wakefulness remained stable throughout. Anxiety and depression symptoms did not predict post-intervention intrusion outcomes. These findings provide partial support for reconsolidation-based mechanisms,suggesting that reactivation alone may be sufficient to reduce intrusive memories, and highlight the need for larger samples and refined experimental parameters in future research. Intrusive memories Memory reconsolidation Reactivation Visuospatial interference Tetris Emotional processing Dewey 150 Maitrise universitaire en psychologie 108 Section de psychologie 71 false 197ac4b4-1a6f-46dc-a2f4-f91e69ecc679 Master thesis Private MUSTO_Federica_Mémoire_avril_2026.pdf 1253366 application/pdf 1fbcf07e3d6bec9e61fa258bfe608ca5ef06d1fd6d980d08b72a53921103ebaf Vignette Public Screenshot 2026-05-07 at 14.39.01.png 198350 image/png closedAccess Faculté de psychologie et des sciences de l'éducation / Section de psychologie

Title	Published in	Access level	OA Policy	Year	Views	Downloads

Tetris as a Tool for the Reduction of Intrusive Memories				2026	14	0

Archive ouverte UNIGE

Musto, Federica Irma

account_balance UNIGE affiliation entities

UNIGE affiliation entities