NDLI: Numeric aspects in pitch identification: an fMRI study

Content Provider	Springer Nature : BioMed Central
Author	Schwenzer, Michael Mathiak, Klaus
Abstract	Background Pitch identification had yielded unique response patterns compared to other auditory skills. Selecting one out of numerous pitches distinguished this task from detecting a pitch ascent. Encoding of numerous stimuli had activated the intraparietal sulcus in the visual domain. Therefore, we hypothesized that numerosity encoding during pitch identification activates the intraparietal sulcus as well. Methods To assess pitch identification, the participants had to recognize a single pitch from a set of four possible pitches in each trial. Functional magnetic resonance imaging (fMRI) disentangled neural activation during this four-pitch-choice task from activation during pitch contour perception, tone localization, and pitch discrimination. Results Pitch identification induced bilateral activation in the intraparietal sulcus compared to pitch discrimination. Correct responses in pitch identification correlated with activation in the left intraparietal sulcus. Pitch contour perception activated the superior temporal gyrus conceivably due to the larger range of presented tones. The differentiation between pitch identification and tone localization failed. Activation in an ACC-hippocampus network distinguished pitch discrimination from pitch identification. Conclusion Pitch identification is distinguishable from pitch discrimination on the base of activation in the IPS. IPS activity during pitch identification may be the auditory counterpart of numerosity encoding in the visual domain.
Related Links	https://bmcneurosci.biomedcentral.com/counter/pdf/10.1186/1471-2202-12-26.pdf
Ending Page	9
Page Count	9
Starting Page	1
File Format	HTM / HTML
ISSN	14712202
DOI	10.1186/1471-2202-12-26
Journal	BMC Neuroscience
Issue Number	1
Volume Number	12
Language	English
Publisher	BioMed Central
Publisher Date	2011-03-09
Access Restriction	Open
Subject Keyword	Neurosciences Neurobiology Animal Models Intraparietal Sulcus Visual Domain Medial Frontal Gyrus Pitch Discrimination Scanner Noise
Content Type	Text
Resource Type	Article
Subject	Neuroscience Cellular and Molecular Neuroscience
Journal Impact Factor	2.4/2023
5-Year Journal Impact Factor	2.9/2023

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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