Distortions of perceived auditory and visual space following adaptation to motion.

Experimental Brain Research
Ross W DeasPaul V McGraw

Abstract

Adaptation to visual motion can induce marked distortions of the perceived spatial location of subsequently viewed stationary objects. These positional shifts are direction specific and exhibit tuning for the speed of the adapting stimulus. In this study, we sought to establish whether comparable motion-induced distortions of space can be induced in the auditory domain. Using individually measured head related transfer functions (HRTFs) we created auditory stimuli that moved either leftward or rightward in the horizontal plane. Participants adapted to unidirectional auditory motion presented at a range of speeds and then judged the spatial location of a brief stationary test stimulus. All participants displayed direction-dependent and speed-tuned shifts in perceived auditory position relative to a 'no adaptation' baseline measure. To permit direct comparison between effects in different sensory domains, measurements of visual motion-induced distortions of perceived position were also made using stimuli equated in positional sensitivity for each participant. Both the overall magnitude of the observed positional shifts, and the nature of their tuning with respect to adaptor speed were similar in each case. A third experiment was ...Continue Reading

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Citations

Mar 1, 2012·Experimental Brain Research·James HeronDavid Whitaker
Oct 22, 2010·Proceedings. Biological Sciences·Neil W RoachPaul V McGraw
Apr 8, 2011·Fiziologiia cheloveka·I G Andreeva, E S Malinina
Apr 20, 2016·Scientific Reports·David P McGovernNeil W Roach
Oct 18, 2016·Current Biology : CB·Maria J S GuerreiroBrigitte Röder
Apr 21, 2016·Trends in Hearing·Simon Carlile, Johahn Leung

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