Title |
Orienting asymmetries and lateralized processing of sounds in humans
|
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Published in |
BMC Neuroscience, February 2009
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DOI | 10.1186/1471-2202-10-14 |
Pubmed ID | |
Authors |
Julia Fischer, Christoph Teufel, Matthis Drolet, Annika Patzelt, Rudolf Rübsamen, D Yves von Cramon, Ricarda I Schubotz |
Abstract |
Lateralized processing of speech is a well studied phenomenon in humans. Both anatomical and neurophysiological studies support the view that nonhuman primates and other animal species also reveal hemispheric differences in areas involved in sound processing. In recent years, an increasing number of studies on a range of taxa have employed an orienting paradigm to investigate lateralized acoustic processing. In this paradigm, sounds are played directly from behind and the direction of turn is recorded. This assay rests on the assumption that a hemispheric asymmetry in processing is coupled to an orienting bias towards the contralateral side. To examine this largely untested assumption, speech stimuli as well as artificial sounds were presented to 224 right-handed human subjects shopping in supermarkets in Germany and in the UK. To verify the lateralized processing of the speech stimuli, we additionally assessed the brain activation in response to presentation of the different stimuli using functional magnetic resonance imaging (fMRI). |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Argentina | 1 | 2% |
Unknown | 50 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 13 | 25% |
Student > Ph. D. Student | 8 | 16% |
Student > Master | 5 | 10% |
Student > Bachelor | 5 | 10% |
Professor | 4 | 8% |
Other | 13 | 25% |
Unknown | 3 | 6% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 20 | 39% |
Psychology | 13 | 25% |
Neuroscience | 7 | 14% |
Arts and Humanities | 2 | 4% |
Medicine and Dentistry | 2 | 4% |
Other | 3 | 6% |
Unknown | 4 | 8% |