Beeching P (2017) Mapping tactile interference using tms on a one-interval forced choice discrimination task. BSc Thesis, University of Nottingham, 33pp.
Previous research in tactile perception has shown that transcranial magnetic stimulation (TMS) interferes with tactile discrimination when applied to the primary somatosensory cortex (S1) hand area. However, papers use often inaccurate and vastly different ways of identifying S1. This current study asked participants to identify whether a vibrotactile stimuli presented to their index finger was either ‘weak’ or ‘strong’ whilst single pulse TMS was applied to 7 locations across the primary motor cortex (M1) and S1, in order to map tactile discrimination interference. Statistical analysis supported the conclusion that TMS interferes perception, and demonstrated significant interference lateral to the M1 TMS site that differ from previous research findings which have shown interference both posteriorly and laterally