Cerebral mechanisms underlying orienting of attention towards auditory frequency changes
Brain mechanisms underlying detection of auditory frequency changes were studied with event-related potentials (ERPs) in 14 human subjects discriminating visual stimuli. Scalp-current density mapping revealed bilateral components of mismatch negativity (MMN) in frontal and auditory cortices. Devianc...
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description | Brain mechanisms underlying detection of auditory frequency changes were studied with event-related potentials (ERPs) in 14 human subjects discriminating visual stimuli. Scalp-current density mapping revealed bilateral components of mismatch negativity (MMN) in frontal and auditory cortices. Deviance-related activations in frontal and temporal cortex began to be significant at 94 ms and 154 ms in the right hemisphere, and at 128 ms and 132 ms in the left hemisphere. The magnitude of MMN-neuroelectric currents from the left temporal cortex correlated significantly (r = −0.56, p < 0.05) with distraction caused by MMN-eliciting deviant tones. These results suggest a complex cerebral circuitry involved in frequency change detection and strongly support the role of this circuitry in driving attention involuntarily towards potentially relevant frequency changes in the acoustic environment. |
doi_str_mv | 10.1097/00001756-200108080-00058 |
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Scalp-current density mapping revealed bilateral components of mismatch negativity (MMN) in frontal and auditory cortices. Deviance-related activations in frontal and temporal cortex began to be significant at 94 ms and 154 ms in the right hemisphere, and at 128 ms and 132 ms in the left hemisphere. The magnitude of MMN-neuroelectric currents from the left temporal cortex correlated significantly (r = −0.56, p < 0.05) with distraction caused by MMN-eliciting deviant tones. 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Scalp-current density mapping revealed bilateral components of mismatch negativity (MMN) in frontal and auditory cortices. Deviance-related activations in frontal and temporal cortex began to be significant at 94 ms and 154 ms in the right hemisphere, and at 128 ms and 132 ms in the left hemisphere. The magnitude of MMN-neuroelectric currents from the left temporal cortex correlated significantly (r = −0.56, p < 0.05) with distraction caused by MMN-eliciting deviant tones. These results suggest a complex cerebral circuitry involved in frequency change detection and strongly support the role of this circuitry in driving attention involuntarily towards potentially relevant frequency changes in the acoustic environment.</description><subject>Activity levels. Psychomotricity</subject><subject>Adult</subject><subject>Attention - physiology</subject><subject>Auditory Cortex - physiology</subject><subject>Biological and medical sciences</subject><subject>Evoked Potentials, Auditory - physiology</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Humans</subject><subject>Male</subject><subject>Orientation - physiology</subject><subject>Pitch Perception - physiology</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychology. Psychophysiology</subject><subject>Sound Localization - physiology</subject><subject>Vigilance. Attention. 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Psychomotricity</topic><topic>Adult</topic><topic>Attention - physiology</topic><topic>Auditory Cortex - physiology</topic><topic>Biological and medical sciences</topic><topic>Evoked Potentials, Auditory - physiology</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Humans</topic><topic>Male</topic><topic>Orientation - physiology</topic><topic>Pitch Perception - physiology</topic><topic>Psychology. Psychoanalysis. Psychiatry</topic><topic>Psychology. Psychophysiology</topic><topic>Sound Localization - physiology</topic><topic>Vigilance. Attention. Sleep</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yago, Elena</creatorcontrib><creatorcontrib>Escera, Carles</creatorcontrib><creatorcontrib>Alho, Kimmo</creatorcontrib><creatorcontrib>Giard, Marie-Hélène</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Neuroreport</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yago, Elena</au><au>Escera, Carles</au><au>Alho, Kimmo</au><au>Giard, Marie-Hélène</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cerebral mechanisms underlying orienting of attention towards auditory frequency changes</atitle><jtitle>Neuroreport</jtitle><addtitle>Neuroreport</addtitle><date>2001-08-08</date><risdate>2001</risdate><volume>12</volume><issue>11</issue><spage>2583</spage><epage>2587</epage><pages>2583-2587</pages><issn>0959-4965</issn><eissn>1473-558X</eissn><abstract>Brain mechanisms underlying detection of auditory frequency changes were studied with event-related potentials (ERPs) in 14 human subjects discriminating visual stimuli. Scalp-current density mapping revealed bilateral components of mismatch negativity (MMN) in frontal and auditory cortices. Deviance-related activations in frontal and temporal cortex began to be significant at 94 ms and 154 ms in the right hemisphere, and at 128 ms and 132 ms in the left hemisphere. The magnitude of MMN-neuroelectric currents from the left temporal cortex correlated significantly (r = −0.56, p < 0.05) with distraction caused by MMN-eliciting deviant tones. These results suggest a complex cerebral circuitry involved in frequency change detection and strongly support the role of this circuitry in driving attention involuntarily towards potentially relevant frequency changes in the acoustic environment.</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams & Wilkins, Inc</pub><pmid>11496153</pmid><doi>10.1097/00001756-200108080-00058</doi><tpages>5</tpages></addata></record> |
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subjects | Activity levels. Psychomotricity Adult Attention - physiology Auditory Cortex - physiology Biological and medical sciences Evoked Potentials, Auditory - physiology Female Fundamental and applied biological sciences. Psychology Humans Male Orientation - physiology Pitch Perception - physiology Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Sound Localization - physiology Vigilance. Attention. Sleep |
title | Cerebral mechanisms underlying orienting of attention towards auditory frequency changes |
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