Decreased alpha bandwidth responsiveness to photic driving in Alzheimer disease
The power spectra of the photically activated occipital EEGs of 9 midly to moderately demented probable Alzheimer disease (AD) patients (according to NINCDS-ADRDA criteria), 9 normal age-matched control and 27 normal subjects of different ages were compared. In normal subjects, photic stimulation wi...
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| Veröffentlicht in: | Electroencephalography and clinical neurophysiology 1992, Vol.82 (1), p.45-52 |
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| container_title | Electroencephalography and clinical neurophysiology |
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| creator | Politoff, Alberto L. Monson, Nancy Hass, Patricia Stadler, Richard |
| description | The power spectra of the photically activated occipital EEGs of 9 midly to moderately demented probable Alzheimer disease (AD) patients (according to NINCDS-ADRDA criteria), 9 normal age-matched control and 27 normal subjects of different ages were compared. In normal subjects, photic stimulation with rhythmic flashes ranging between 2 and 20 Hz elicited a characteristic response in each EEG bandwidth (delta, theta, alpha, beta
1 and beta
2). The magnitude of each bandwidth response was a function of the frequency of the photic stimulus. In AD patients the alpha bandwidth response curve was significantly smaller than that of age-matched controls (MANOVA main effect of group,
P=0.018); all the other bandwidth response curves were normal. Therefore, in AD there is a selective abnormality in the alpha bandwidth responsiveness to photic stimulation, probably due to AD pathology in the neuronal generator of the alpha rhythm. |
| doi_str_mv | 10.1016/0013-4694(92)90181-G |
| format | Article |
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1 and beta
2). The magnitude of each bandwidth response was a function of the frequency of the photic stimulus. In AD patients the alpha bandwidth response curve was significantly smaller than that of age-matched controls (MANOVA main effect of group,
P=0.018); all the other bandwidth response curves were normal. Therefore, in AD there is a selective abnormality in the alpha bandwidth responsiveness to photic stimulation, probably due to AD pathology in the neuronal generator of the alpha rhythm.</description><identifier>ISSN: 0013-4694</identifier><identifier>EISSN: 1872-6380</identifier><identifier>DOI: 10.1016/0013-4694(92)90181-G</identifier><identifier>PMID: 1370143</identifier><language>eng</language><publisher>Ireland: Elsevier Ireland Ltd</publisher><subject>Aged ; Alpha bandwidth ; Alpha Rhythm ; Alzheimer disease ; Alzheimer Disease - physiopathology ; Analysis of Variance ; EEG ; Electroencephalography ; Fourier Analysis ; Humans ; Middle Aged ; Occipital Lobe - physiopathology ; Photic Stimulation ; Power spectrum ; Visual system</subject><ispartof>Electroencephalography and clinical neurophysiology, 1992, Vol.82 (1), p.45-52</ispartof><rights>1992</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c357t-716359dd6e53a0c417ff1b51c1d409c6e2698bc4c82fbb7a658b660c100222933</citedby><cites>FETCH-LOGICAL-c357t-716359dd6e53a0c417ff1b51c1d409c6e2698bc4c82fbb7a658b660c100222933</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/1370143$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Politoff, Alberto L.</creatorcontrib><creatorcontrib>Monson, Nancy</creatorcontrib><creatorcontrib>Hass, Patricia</creatorcontrib><creatorcontrib>Stadler, Richard</creatorcontrib><title>Decreased alpha bandwidth responsiveness to photic driving in Alzheimer disease</title><title>Electroencephalography and clinical neurophysiology</title><addtitle>Electroencephalogr Clin Neurophysiol</addtitle><description>The power spectra of the photically activated occipital EEGs of 9 midly to moderately demented probable Alzheimer disease (AD) patients (according to NINCDS-ADRDA criteria), 9 normal age-matched control and 27 normal subjects of different ages were compared. In normal subjects, photic stimulation with rhythmic flashes ranging between 2 and 20 Hz elicited a characteristic response in each EEG bandwidth (delta, theta, alpha, beta
1 and beta
2). The magnitude of each bandwidth response was a function of the frequency of the photic stimulus. In AD patients the alpha bandwidth response curve was significantly smaller than that of age-matched controls (MANOVA main effect of group,
P=0.018); all the other bandwidth response curves were normal. Therefore, in AD there is a selective abnormality in the alpha bandwidth responsiveness to photic stimulation, probably due to AD pathology in the neuronal generator of the alpha rhythm.</description><subject>Aged</subject><subject>Alpha bandwidth</subject><subject>Alpha Rhythm</subject><subject>Alzheimer disease</subject><subject>Alzheimer Disease - physiopathology</subject><subject>Analysis of Variance</subject><subject>EEG</subject><subject>Electroencephalography</subject><subject>Fourier Analysis</subject><subject>Humans</subject><subject>Middle Aged</subject><subject>Occipital Lobe - physiopathology</subject><subject>Photic Stimulation</subject><subject>Power spectrum</subject><subject>Visual system</subject><issn>0013-4694</issn><issn>1872-6380</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1992</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kLtOwzAUhi0EglJ4A5A8IRgCPnZiJwsS4lKQKnWB2XLsE2qUJsFOi-DpSWkFG9MZ_svR_xFyAuwSGMgrxkAkqSzS84JfFAxySCY7ZAS54okUOdslo1_LATmM8Y0xxoGrfbIPQjFIxYjM7tAGNBEdNXU3N7Q0jfvwrp_TgLFrm-hX2GCMtG9pN297b6kLfuWbV-obelN_zdEvMFDn47rmiOxVpo54vL1j8vJw_3z7mExnk6fbm2liRab6RIEUWeGcxEwYZlNQVQVlBhZcygorkcsiL21qc16VpTIyy0spmYVhAeeFEGNytuntQvu-xNjrhY8W69o02C6jVlxliqdqMKYbow1tjAEr3QW_MOFTA9NrjnoNSa8h6YLrH456MsROt_3LcoHuL7QBN-jXGx2HkSuPQUfrsbHofEDba9f6_x98A7E_gac</recordid><startdate>1992</startdate><enddate>1992</enddate><creator>Politoff, Alberto L.</creator><creator>Monson, Nancy</creator><creator>Hass, Patricia</creator><creator>Stadler, Richard</creator><general>Elsevier Ireland Ltd</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>7X8</scope></search><sort><creationdate>1992</creationdate><title>Decreased alpha bandwidth responsiveness to photic driving in Alzheimer disease</title><author>Politoff, Alberto L. ; Monson, Nancy ; Hass, Patricia ; Stadler, Richard</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c357t-716359dd6e53a0c417ff1b51c1d409c6e2698bc4c82fbb7a658b660c100222933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1992</creationdate><topic>Aged</topic><topic>Alpha bandwidth</topic><topic>Alpha Rhythm</topic><topic>Alzheimer disease</topic><topic>Alzheimer Disease - physiopathology</topic><topic>Analysis of Variance</topic><topic>EEG</topic><topic>Electroencephalography</topic><topic>Fourier Analysis</topic><topic>Humans</topic><topic>Middle Aged</topic><topic>Occipital Lobe - physiopathology</topic><topic>Photic Stimulation</topic><topic>Power spectrum</topic><topic>Visual system</topic><toplevel>online_resources</toplevel><creatorcontrib>Politoff, Alberto L.</creatorcontrib><creatorcontrib>Monson, Nancy</creatorcontrib><creatorcontrib>Hass, Patricia</creatorcontrib><creatorcontrib>Stadler, Richard</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Electroencephalography and clinical neurophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Politoff, Alberto L.</au><au>Monson, Nancy</au><au>Hass, Patricia</au><au>Stadler, Richard</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Decreased alpha bandwidth responsiveness to photic driving in Alzheimer disease</atitle><jtitle>Electroencephalography and clinical neurophysiology</jtitle><addtitle>Electroencephalogr Clin Neurophysiol</addtitle><date>1992</date><risdate>1992</risdate><volume>82</volume><issue>1</issue><spage>45</spage><epage>52</epage><pages>45-52</pages><issn>0013-4694</issn><eissn>1872-6380</eissn><abstract>The power spectra of the photically activated occipital EEGs of 9 midly to moderately demented probable Alzheimer disease (AD) patients (according to NINCDS-ADRDA criteria), 9 normal age-matched control and 27 normal subjects of different ages were compared. In normal subjects, photic stimulation with rhythmic flashes ranging between 2 and 20 Hz elicited a characteristic response in each EEG bandwidth (delta, theta, alpha, beta
1 and beta
2). The magnitude of each bandwidth response was a function of the frequency of the photic stimulus. In AD patients the alpha bandwidth response curve was significantly smaller than that of age-matched controls (MANOVA main effect of group,
P=0.018); all the other bandwidth response curves were normal. Therefore, in AD there is a selective abnormality in the alpha bandwidth responsiveness to photic stimulation, probably due to AD pathology in the neuronal generator of the alpha rhythm.</abstract><cop>Ireland</cop><pub>Elsevier Ireland Ltd</pub><pmid>1370143</pmid><doi>10.1016/0013-4694(92)90181-G</doi><tpages>8</tpages></addata></record> |
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| ispartof | Electroencephalography and clinical neurophysiology, 1992, Vol.82 (1), p.45-52 |
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| source | MEDLINE; Alma/SFX Local Collection |
| subjects | Aged Alpha bandwidth Alpha Rhythm Alzheimer disease Alzheimer Disease - physiopathology Analysis of Variance EEG Electroencephalography Fourier Analysis Humans Middle Aged Occipital Lobe - physiopathology Photic Stimulation Power spectrum Visual system |
| title | Decreased alpha bandwidth responsiveness to photic driving in Alzheimer disease |
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