Head Tracking of Auditory, Visual, and Audio-Visual Targets
Identifieur interne : 000178 ( Main/Exploration ); précédent : 000177; suivant : 000179Head Tracking of Auditory, Visual, and Audio-Visual Targets
Auteurs : Johahn Leung ; Vincent Wei ; Martin Burgess ; Simon CarlileSource :
- Frontiers in Neuroscience [ 1662-4548 ] ; 2016.
Abstract
The ability to actively follow a moving auditory target with our heads remains unexplored even though it is a common behavioral response. Previous studies of auditory motion perception have focused on the condition where the subjects are passive. The current study examined head tracking behavior to a moving auditory target along a horizontal 100° arc in the frontal hemisphere, with velocities ranging from 20 to 110°/s. By integrating high fidelity virtual auditory space with a high-speed visual presentation we compared tracking responses of auditory targets against visual-only and audio-visual “bisensory” stimuli. Three metrics were measured—onset, RMS, and gain error. The results showed that tracking accuracy (RMS error) varied linearly with target velocity, with a significantly higher rate in audition. Also, when the target moved faster than 80°/s, onset and RMS error were significantly worst in audition the other modalities while responses in the visual and bisensory conditions were statistically identical for all metrics measured. Lastly, audio-visual facilitation was not observed when tracking bisensory targets.
Url:
DOI: 10.3389/fnins.2015.00493
PubMed: 26778952
PubMed Central: 4701932
Affiliations:
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Previous studies of auditory motion perception have focused on the condition where the subjects are passive. The current study examined head tracking behavior to a moving auditory target along a horizontal 100° arc in the frontal hemisphere, with velocities ranging from 20 to 110°/s. By integrating high fidelity virtual auditory space with a high-speed visual presentation we compared tracking responses of auditory targets against visual-only and audio-visual “bisensory” stimuli. Three metrics were measured—onset, RMS, and gain error. The results showed that tracking accuracy (RMS error) varied linearly with target velocity, with a significantly higher rate in audition. Also, when the target moved faster than 80°/s, onset and RMS error were significantly worst in audition the other modalities while responses in the visual and bisensory conditions were statistically identical for all metrics measured. 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Zetzsche</name></author><author><name sortKey="Schill, K" uniqKey="Schill K">K. Schill</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list></list><tree><noCountry><name sortKey="Burgess, Martin" sort="Burgess, Martin" uniqKey="Burgess M" first="Martin" last="Burgess">Martin Burgess</name><name sortKey="Carlile, Simon" sort="Carlile, Simon" uniqKey="Carlile S" first="Simon" last="Carlile">Simon Carlile</name><name sortKey="Leung, Johahn" sort="Leung, Johahn" uniqKey="Leung J" first="Johahn" last="Leung">Johahn Leung</name><name sortKey="Wei, Vincent" sort="Wei, Vincent" uniqKey="Wei V" first="Vincent" last="Wei">Vincent Wei</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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