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Updated: Jan 27, 2026

Lower Limb Biomechanical Analysis of Healthy Participants
Published on: April 15, 2020
Impact of pressure as a tactile stimulus on working memory in healthy participants
Mahboobeh Dehghan Nayyeri1,2, Markus Burgmer3, Bettina Pfleiderer1
1Medical Faculty and Institute of Clinical Radiology, University Hospital Muenster, Muenster, Germany.
Abstract:
Studies on cross-modal interaction have demonstrated attenuated as well as facilitated effects for both neural responses as well as behavioral performance. The goals of this pilot study were to investigate possible cross-modal interactions of tactile stimulation on visual working memory and to identify possible neuronal correlates by using functional magnetic resonance imaging (fMRI). During fMRI, participants (n = 12 females, n = 12 males) performed a verbal n-back task (0-back and 2-back tasks) while tactile pressure to the left thumbnail was delivered. Participants presented significantly lower behavioral performances (increased error rates, and reaction times) during the 2-back task as compared to the 0-back task. Task performance was independent of pressure in both tasks. This means that working memory performance was not impacted by a low salient tactile stimulus. Also in the fMRI data, no significant interactions of n-back x pressure were observed. In conclusion, the current study found no influence of tactile pressure on task-related brain activity during n-back (0-back and 2-back) tasks.
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