Exploring visuo-tactile crossmodal mechanisms through the frequency-tagging approach of the steady-state evoked potentials
(2016) Neuronus 2016 IBRO & IRUN Neuroscience Forum — Location: KRakow, Poland (22.April.2016)
Files
PosterRDKVL2.pdf
Open Access - Adobe PDF
- 9.8 MB
Details
- Authors
- Abstract
- Covertly directing ones’ attention to the location of a stimulus of one sensory modality can affect the processing of the stimulus of another modality when presented at the same location. Here, we explored these mechanisms using steady-state evoked potentials (SSEP), suggested to reflect (at least partially) brain processing in primary sensory cortices. Using light emitting diodes, two 16s sustained trains of flickering visual stimulation were concomitantly presented in either side of space. At the same time a train of vibrotactile stimulation was applied on the participant’s hand. In different blocks, the hand was positioned close to either the left or the right diode. Three different frequencies of stimulation were chosen to tag the specific EEG responses to the three different stimuli (visual left, visual right, tactile). Participants were asked to report occasional interruptions in the three streams of stimulation. Surprisingly, the results show no modulation of the amplitude of the visual SSEP when concomitant with the vibrotactile stimulation. This suggest that the crossmodal mechanisms known to modulate the ERP components, might not be involved in the SSVEP.
- Affiliations
Citations
De Keyser, R., & Legrain, V. (2016). Exploring visuo-tactile crossmodal mechanisms through the frequency-tagging approach of the steady-state evoked potentials. Neuronus 2016 IBRO & IRUN Neuroscience Forum, KRakow, Poland. https://hdl.handle.net/2078.5/178777