Some Physiologic Aspects of the Averaged Vertex Response in Humans
The averaged vertex response evoked by pure tone stimuli was studied in awake human beings between the ages of 2 months and 76 years, and the following conclusions were reached: There was no linear relationship between age and vertex response latency or amplitude. For yet unknown reasons, an occasio...
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| Veröffentlicht in: | Audiology 1973, Vol.12 (1), p.1-13 |
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| container_title | Audiology |
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| creator | Cody, D. T. R. Townsend, G. L. |
| description | The averaged vertex response evoked by pure tone stimuli was studied in awake human beings between the ages of 2 months and 76 years, and the following conclusions were reached:
There was no linear relationship between age and vertex response latency or amplitude. For yet unknown reasons, an occasional child, particularly in the 2- to 3-year age range, has a vertex response that is longer in latency and larger in amplitude than the latency and amplitude usually encountered in the vertex response of patients in the age range from 2 months to 5 years and in the adult population.
The characteristics of the averaged vertex response are not altered by distracting the subject's attention from the stimuli; neither are they altered in patients with functional impairment of hearing. Vertex response thresholds determined in patients with functional loss of hearing correlate accurately with their true organic thresholds of hearing.
The vertex off-response is a most inconsistent phenomenon in the normal population. When present, the amplitude of the off-response was approximately a third of the amplitude of the on-response and was characterized n most subjects by a large positive components (P2) and a minor negative component (N1). |
| doi_str_mv | 10.3109/00206097309070053 |
| format | Article |
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There was no linear relationship between age and vertex response latency or amplitude. For yet unknown reasons, an occasional child, particularly in the 2- to 3-year age range, has a vertex response that is longer in latency and larger in amplitude than the latency and amplitude usually encountered in the vertex response of patients in the age range from 2 months to 5 years and in the adult population.
The characteristics of the averaged vertex response are not altered by distracting the subject's attention from the stimuli; neither are they altered in patients with functional impairment of hearing. Vertex response thresholds determined in patients with functional loss of hearing correlate accurately with their true organic thresholds of hearing.
The vertex off-response is a most inconsistent phenomenon in the normal population. When present, the amplitude of the off-response was approximately a third of the amplitude of the on-response and was characterized n most subjects by a large positive components (P2) and a minor negative component (N1).</description><identifier>ISSN: 1499-2027</identifier><identifier>ISSN: 0020-6091</identifier><identifier>EISSN: 1708-8186</identifier><identifier>DOI: 10.3109/00206097309070053</identifier><identifier>PMID: 4681960</identifier><identifier>CODEN: AUDLAK</identifier><language>eng</language><publisher>Switzerland: Informa UK Ltd</publisher><subject>Acoustic Stimulation ; Adolescent ; Adult ; Age Factors ; Aged ; amplitude ; and P ; Attention ; Audiometry ; Auditory Threshold ; Cerebral Cortex - growth & development ; Cerebral Cortex - physiology ; Child ; Child, Preschool ; Electric Response Audiometry ; Electroencephalography ; Evoked Potentials ; Female ; Functional hearing impairment ; Humans ; Infant ; Male ; Maturation of audiotory-evoked potentials ; Middle Aged ; Peal latencies for N ; Vertex off-response ; Vertex on-response</subject><ispartof>Audiology, 1973, Vol.12 (1), p.1-13</ispartof><rights>1973 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted 1973</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c466t-b660c79c1ee58f03cd65746087e3aae6a0a2c8ec17e2688707609db4708d1d8e3</citedby><cites>FETCH-LOGICAL-c466t-b660c79c1ee58f03cd65746087e3aae6a0a2c8ec17e2688707609db4708d1d8e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.tandfonline.com/doi/pdf/10.3109/00206097309070053$$EPDF$$P50$$Ginformaworld$$H</linktopdf><linktohtml>$$Uhttps://www.tandfonline.com/doi/full/10.3109/00206097309070053$$EHTML$$P50$$Ginformaworld$$H</linktohtml><link.rule.ids>314,780,784,4024,27923,27924,27925,59647,60436,61221,61256,61402,61437</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/4681960$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cody, D. T. R.</creatorcontrib><creatorcontrib>Townsend, G. L.</creatorcontrib><title>Some Physiologic Aspects of the Averaged Vertex Response in Humans</title><title>Audiology</title><addtitle>Audiology</addtitle><description>The averaged vertex response evoked by pure tone stimuli was studied in awake human beings between the ages of 2 months and 76 years, and the following conclusions were reached:
There was no linear relationship between age and vertex response latency or amplitude. For yet unknown reasons, an occasional child, particularly in the 2- to 3-year age range, has a vertex response that is longer in latency and larger in amplitude than the latency and amplitude usually encountered in the vertex response of patients in the age range from 2 months to 5 years and in the adult population.
The characteristics of the averaged vertex response are not altered by distracting the subject's attention from the stimuli; neither are they altered in patients with functional impairment of hearing. Vertex response thresholds determined in patients with functional loss of hearing correlate accurately with their true organic thresholds of hearing.
The vertex off-response is a most inconsistent phenomenon in the normal population. When present, the amplitude of the off-response was approximately a third of the amplitude of the on-response and was characterized n most subjects by a large positive components (P2) and a minor negative component (N1).</description><subject>Acoustic Stimulation</subject><subject>Adolescent</subject><subject>Adult</subject><subject>Age Factors</subject><subject>Aged</subject><subject>amplitude</subject><subject>and P</subject><subject>Attention</subject><subject>Audiometry</subject><subject>Auditory Threshold</subject><subject>Cerebral Cortex - growth & development</subject><subject>Cerebral Cortex - physiology</subject><subject>Child</subject><subject>Child, Preschool</subject><subject>Electric Response Audiometry</subject><subject>Electroencephalography</subject><subject>Evoked Potentials</subject><subject>Female</subject><subject>Functional hearing impairment</subject><subject>Humans</subject><subject>Infant</subject><subject>Male</subject><subject>Maturation of audiotory-evoked potentials</subject><subject>Middle Aged</subject><subject>Peal latencies for N</subject><subject>Vertex off-response</subject><subject>Vertex on-response</subject><issn>1499-2027</issn><issn>0020-6091</issn><issn>1708-8186</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1973</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkM1Lw0AQxRdRqlb_AA_CnrxFZ_Oxu0EvtagVCopf17DdTNqUJFt3E7X_vVtaBBH1NAPz3mPej5AjBqcRg_QMIAQOqYggBQGQRFtkjwmQgWSSb_s9TtMghFDskn3n5gBMxInskV7MJUs57JHLR1MjvZ8tXWkqMy01HbgF6tZRU9B2hnTwhlZNMacvaFv8oA_oFqZxSMuGjrpaNe6A7BSqcni4mX3yfH31NBwF47ub2-FgHOiY8zaYcA5apJohJrKASOc8ETEHKTBSCrkCFWqJmgkMuZQChG-WT2JfJ2e5xKhPTta5C2teO3RtVpdOY1WpBk3nMt-Z8QTgX2EiPC0uYy9ka6G2xjmLRbawZa3sMmOQrQBnPwB7z_EmvJvUmH85NkT9_WJ9L5vC2Fq9G1vlWauWlbGFVY0u3Sr69_jzb_YZqqqdaWUxm5vONh7wH899AkGBmXw</recordid><startdate>1973</startdate><enddate>1973</enddate><creator>Cody, D. T. R.</creator><creator>Townsend, G. L.</creator><general>Informa UK Ltd</general><general>Taylor & Francis</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7T9</scope><scope>7X8</scope><scope>8BM</scope></search><sort><creationdate>1973</creationdate><title>Some Physiologic Aspects of the Averaged Vertex Response in Humans</title><author>Cody, D. T. R. ; Townsend, G. L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c466t-b660c79c1ee58f03cd65746087e3aae6a0a2c8ec17e2688707609db4708d1d8e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1973</creationdate><topic>Acoustic Stimulation</topic><topic>Adolescent</topic><topic>Adult</topic><topic>Age Factors</topic><topic>Aged</topic><topic>amplitude</topic><topic>and P</topic><topic>Attention</topic><topic>Audiometry</topic><topic>Auditory Threshold</topic><topic>Cerebral Cortex - growth & development</topic><topic>Cerebral Cortex - physiology</topic><topic>Child</topic><topic>Child, Preschool</topic><topic>Electric Response Audiometry</topic><topic>Electroencephalography</topic><topic>Evoked Potentials</topic><topic>Female</topic><topic>Functional hearing impairment</topic><topic>Humans</topic><topic>Infant</topic><topic>Male</topic><topic>Maturation of audiotory-evoked potentials</topic><topic>Middle Aged</topic><topic>Peal latencies for N</topic><topic>Vertex off-response</topic><topic>Vertex on-response</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cody, D. T. R.</creatorcontrib><creatorcontrib>Townsend, G. L.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Linguistics and Language Behavior Abstracts (LLBA)</collection><collection>MEDLINE - Academic</collection><collection>ComDisDome</collection><jtitle>Audiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cody, D. T. R.</au><au>Townsend, G. L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Some Physiologic Aspects of the Averaged Vertex Response in Humans</atitle><jtitle>Audiology</jtitle><addtitle>Audiology</addtitle><date>1973</date><risdate>1973</risdate><volume>12</volume><issue>1</issue><spage>1</spage><epage>13</epage><pages>1-13</pages><issn>1499-2027</issn><issn>0020-6091</issn><eissn>1708-8186</eissn><coden>AUDLAK</coden><abstract>The averaged vertex response evoked by pure tone stimuli was studied in awake human beings between the ages of 2 months and 76 years, and the following conclusions were reached:
There was no linear relationship between age and vertex response latency or amplitude. For yet unknown reasons, an occasional child, particularly in the 2- to 3-year age range, has a vertex response that is longer in latency and larger in amplitude than the latency and amplitude usually encountered in the vertex response of patients in the age range from 2 months to 5 years and in the adult population.
The characteristics of the averaged vertex response are not altered by distracting the subject's attention from the stimuli; neither are they altered in patients with functional impairment of hearing. Vertex response thresholds determined in patients with functional loss of hearing correlate accurately with their true organic thresholds of hearing.
The vertex off-response is a most inconsistent phenomenon in the normal population. When present, the amplitude of the off-response was approximately a third of the amplitude of the on-response and was characterized n most subjects by a large positive components (P2) and a minor negative component (N1).</abstract><cop>Switzerland</cop><pub>Informa UK Ltd</pub><pmid>4681960</pmid><doi>10.3109/00206097309070053</doi><tpages>13</tpages></addata></record> |
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| ispartof | Audiology, 1973, Vol.12 (1), p.1-13 |
| issn | 1499-2027 0020-6091 1708-8186 |
| language | eng |
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| source | MEDLINE; Taylor & Francis Medical Library - CRKN; Access via Taylor & Francis |
| subjects | Acoustic Stimulation Adolescent Adult Age Factors Aged amplitude and P Attention Audiometry Auditory Threshold Cerebral Cortex - growth & development Cerebral Cortex - physiology Child Child, Preschool Electric Response Audiometry Electroencephalography Evoked Potentials Female Functional hearing impairment Humans Infant Male Maturation of audiotory-evoked potentials Middle Aged Peal latencies for N Vertex off-response Vertex on-response |
| title | Some Physiologic Aspects of the Averaged Vertex Response in Humans |
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