@article{ Yordanova_etal01,
  author = {Yordanova, J. and Banaschewski, T. and Kolev, V. and Woerner, W.
	and Rothenberger, A.},
  title = {Abnormal early stages of task stimulus processing in children with
	attention-deficit hyperactivity disorder--evidence from event-related
	gamma oscillations},
  journal = {Clin Neurophysiol},
  year = {2001},
  volume = {112},
  pages = {1096-108},
  number = {6},
  abstract = {Institute of Physiology, Bulgarian Academy of Sciences, Acad. G. Bonchev
	str., bl. 23, 1113, Sofia, Bulgaria. 
	
	OBJECTIVES: Attention-related differences in early stages of stimulus
	processing were assessed in healthy controls and children with attention-deficit
	hyperactivity disorder (ADHD) by analyzing phase-locked gamma band
	(31-63 Hz) responses to auditory stimuli in a selective-attention
	task. METHODS: A total of 28 children aged 9-12 years (ADHD and matched
	healthy controls) pressed a button in response to each target stimulus
	presented at the attended side (right or left). Auditory gamma band
	responses (GBRs) within 0-120 ms were analyzed at 8 electrodes with
	wavelet transform. Effects of attended channel, stimulus type, and
	group were evaluated for GBR power and phase-locking. RESULTS: For
	both groups, GBRs had a frontal-central distribution, were significantly
	larger and more strongly phase-locked to target than to non-target
	stimuli, and did not differentiate the attended from the unattended
	channel. ADHD children produced larger and more strongly phase-locked
	GBRs than controls only to right-side stimuli, irrespective of whether
	these were the attended or the ignored stimuli. CONCLUSIONS: The
	association between auditory GBR and motor task stimulus in children
	suggests that phase-locked gamma oscillations may reflect processes
	of sensory-motor integration. ADHD-related deviations of GBRs indicate
	that early mechanisms of auditory stimulus processing are altered
	in ADHD, presumably as a result of impaired motor inhibition. }
}

{"_id":"eC4F4vYZvW6oMaEpL","bibbaseid":"yordanova-banaschewski-kolev-woerner-rothenberger-abnormalearlystagesoftaskstimulusprocessinginchildrenwithattentiondeficithyperactivitydisorderevidencefromeventrelatedgammaoscillations-2001","downloads":0,"creationDate":"2015-02-08T05:15:01.315Z","title":"Abnormal early stages of task stimulus processing in children with attention-deficit hyperactivity disorder--evidence from event-related gamma oscillations","author_short":["Yordanova, J.","Banaschewski, T.","Kolev, V.","Woerner, W.","Rothenberger, A."],"year":2001,"bibtype":"article","biburl":"http://cnslab.mb.jhu.edu/niebase.bib","bibdata":{"abstract":"Institute of Physiology, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 23, 1113, Sofia, Bulgaria. OBJECTIVES: Attention-related differences in early stages of stimulus processing were assessed in healthy controls and children with attention-deficit hyperactivity disorder (ADHD) by analyzing phase-locked gamma band (31-63 Hz) responses to auditory stimuli in a selective-attention task. METHODS: A total of 28 children aged 9-12 years (ADHD and matched healthy controls) pressed a button in response to each target stimulus presented at the attended side (right or left). Auditory gamma band responses (GBRs) within 0-120 ms were analyzed at 8 electrodes with wavelet transform. Effects of attended channel, stimulus type, and group were evaluated for GBR power and phase-locking. RESULTS: For both groups, GBRs had a frontal-central distribution, were significantly larger and more strongly phase-locked to target than to non-target stimuli, and did not differentiate the attended from the unattended channel. ADHD children produced larger and more strongly phase-locked GBRs than controls only to right-side stimuli, irrespective of whether these were the attended or the ignored stimuli. CONCLUSIONS: The association between auditory GBR and motor task stimulus in children suggests that phase-locked gamma oscillations may reflect processes of sensory-motor integration. ADHD-related deviations of GBRs indicate that early mechanisms of auditory stimulus processing are altered in ADHD, presumably as a result of impaired motor inhibition.","author":["Yordanova, J.","Banaschewski, T.","Kolev, V.","Woerner, W.","Rothenberger, A."],"author_short":["Yordanova, J.","Banaschewski, T.","Kolev, V.","Woerner, W.","Rothenberger, A."],"bibtex":"@article{ Yordanova_etal01,\n author = {Yordanova, J. and Banaschewski, T. and Kolev, V. and Woerner, W.\n\tand Rothenberger, A.},\n title = {Abnormal early stages of task stimulus processing in children with\n\tattention-deficit hyperactivity disorder--evidence from event-related\n\tgamma oscillations},\n journal = {Clin Neurophysiol},\n year = {2001},\n volume = {112},\n pages = {1096-108},\n number = {6},\n abstract = {Institute of Physiology, Bulgarian Academy of Sciences, Acad. G. Bonchev\n\tstr., bl. 23, 1113, Sofia, Bulgaria. \n\t\n\tOBJECTIVES: Attention-related differences in early stages of stimulus\n\tprocessing were assessed in healthy controls and children with attention-deficit\n\thyperactivity disorder (ADHD) by analyzing phase-locked gamma band\n\t(31-63 Hz) responses to auditory stimuli in a selective-attention\n\ttask. METHODS: A total of 28 children aged 9-12 years (ADHD and matched\n\thealthy controls) pressed a button in response to each target stimulus\n\tpresented at the attended side (right or left). Auditory gamma band\n\tresponses (GBRs) within 0-120 ms were analyzed at 8 electrodes with\n\twavelet transform. Effects of attended channel, stimulus type, and\n\tgroup were evaluated for GBR power and phase-locking. RESULTS: For\n\tboth groups, GBRs had a frontal-central distribution, were significantly\n\tlarger and more strongly phase-locked to target than to non-target\n\tstimuli, and did not differentiate the attended from the unattended\n\tchannel. ADHD children produced larger and more strongly phase-locked\n\tGBRs than controls only to right-side stimuli, irrespective of whether\n\tthese were the attended or the ignored stimuli. CONCLUSIONS: The\n\tassociation between auditory GBR and motor task stimulus in children\n\tsuggests that phase-locked gamma oscillations may reflect processes\n\tof sensory-motor integration. ADHD-related deviations of GBRs indicate\n\tthat early mechanisms of auditory stimulus processing are altered\n\tin ADHD, presumably as a result of impaired motor inhibition. }\n}","bibtype":"article","id":"Yordanova_etal01","journal":"Clin Neurophysiol","key":"Yordanova_etal01","number":"6","pages":"1096-108","title":"Abnormal early stages of task stimulus processing in children with attention-deficit hyperactivity disorder--evidence from event-related gamma oscillations","type":"article","volume":"112","year":"2001","bibbaseid":"yordanova-banaschewski-kolev-woerner-rothenberger-abnormalearlystagesoftaskstimulusprocessinginchildrenwithattentiondeficithyperactivitydisorderevidencefromeventrelatedgammaoscillations-2001","role":"author","urls":{},"downloads":0},"search_terms":["abnormal","early","stages","task","stimulus","processing","children","attention","deficit","hyperactivity","disorder","evidence","event","related","gamma","oscillations","yordanova","banaschewski","kolev","woerner","rothenberger"],"keywords":[],"authorIDs":[],"dataSources":["ErLXoH8mqSjESnrN5"]}