Neuronale Mechanismen der audio-visuellen Bewegungswahrnehmung
Final Report Abstract
Motion detection is a fundamental perceptual dimension that relies on neurons that respond in a direction specific manner to moving stimuli. In the present project auditory motion detection in humans was investigated using multi-channel auditory-evoked cortical potentials to motion, i.e. motion-onset AEPs. The following results were obtained: • Motion-onset AEPs without an immediate history of a virtually moving sound source evoked. In accordance with previous studies, a robust fronto-central response complex dominated by cNI around 180 ms and cP2 around 250 ms. • The Impact of motion history on motion-onset AEPs depended on the exact stimulus configuration. As a major influence stimulus repetition and stimulus novelty was identified. • No direction specific effects of motion history on AEP amplitude were observed. A direction specific latency effect was only observed, if stimulus repetitions were omitted.
Publications
- (2010). Effect of motion adaptation on motion-onset auditory evoked potentials. Society for Neuroscience Meeting Proceedings 480.16
Hoffmann MB, Bockmann-Barthel M, Mühler R, Grzeschik R
- (2010). Motion-onset auditory evoked potentials critically depend on history. Experimental Brain Research 203:159-168
Grzeschik R, Boeckmann-Bartels M, Muehler R, Hoffmann MB
- (2011). Effects of motion history on motion-onset auditory evoked potentials. Proceedings of the Ninth Göttingen Meeting of the German Neuroscience Society (T18-2B)
Grzeschik R, Bockmann-Barthel M, Mühler R, Hoffmann MB
