PMID- 10699405
OWN - NLM
STAT- MEDLINE
DCOM- 20000504
LR  - 20220316
IS  - 1388-2457 (Print)
IS  - 1388-2457 (Linking)
VI  - 111
IP  - 3
DP  - 2000 Mar
TI  - EOG correction of blinks with saccade coefficients: a test and revision of the 
      aligned-artefact average solution.
PG  - 444-51
AB  - OBJECTIVE: The 'aligned-artefact average' (AAA) procedure was advanced by the 
      authors as a technique suitable for removing eye movement-related artefacts from 
      the EEG. It was proposed that this method would correct both blink and non-blink 
      artefact from the EEG, using the same set of correction coefficients (Bs). 
      However, recent evidence suggests that this simplification is not always 
      accurate. Thus, we test here a revision of the AAA, including an appropriate 
      allowance for the radial EOG (REOG) component, that does allow the use of the 
      same Bs for the correction of blink and non-blink artefact. METHODS: Blink (and 
      saccade) ERP data from 15 subjects were corrected using the AAA method, with Bs 
      calculated from the same blink (and saccade) data set (referent waveforms), or a 
      different set of blink (and saccade) data, or using the new revised AAA procedure 
      (RAAA). RESULTS: AAA Bs calculated from saccades corrected blinks poorly (and 
      vice versa). However, the RAAA Bs corrected blink ERPs better than blink-derived 
      Bs, and saccade ERPs better than saccade-derived Bs. It was also found that 
      irrespective of correction type, inclusion of REOG improved correction. 
      CONCLUSION: EOG correction is more accurate when the radial channel is included, 
      but inclusion of REOG (and/or HEOG) is not sufficient to resolve the discrepancy 
      between blink and saccade correction. Using the RAAA procedure, both blink and 
      non-blink data can be corrected using the same set of Bs.
FAU - Croft, R J
AU  - Croft RJ
AD  - Department of Behavioural & Cognitive Sciences, Imperial College of Science, 
      Technology & Medicine, Charing Cross Hospital, St. Dunstan's Road, London, UK. 
      r.croft@ic.ac.uk
FAU - Barry, R J
AU  - Barry RJ
LA  - eng
PT  - Journal Article
PL  - Netherlands
TA  - Clin Neurophysiol
JT  - Clinical neurophysiology : official journal of the International Federation of 
      Clinical Neurophysiology
JID - 100883319
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Analysis of Variance
MH  - *Artifacts
MH  - Blinking/*physiology
MH  - Electroencephalography
MH  - Electrooculography
MH  - Evoked Potentials/physiology
MH  - Female
MH  - Humans
MH  - Male
MH  - Saccades/*physiology
EDAT- 2000/03/04 09:00
MHDA- 2000/05/08 09:00
CRDT- 2000/03/04 09:00
PHST- 2000/03/04 09:00 [pubmed]
PHST- 2000/05/08 09:00 [medline]
PHST- 2000/03/04 09:00 [entrez]
AID - S1388-2457(99)00296-5 [pii]
AID - 10.1016/s1388-2457(99)00296-5 [doi]
PST - ppublish
SO  - Clin Neurophysiol. 2000 Mar;111(3):444-51. doi: 10.1016/s1388-2457(99)00296-5.