PMID- 8262780
OWN - NLM
STAT- MEDLINE
DCOM- 19940127
LR  - 20190830
IS  - 0017-8748 (Print)
IS  - 0017-8748 (Linking)
VI  - 33
IP  - 8
DP  - 1993 Sep
TI  - Brain potential differences related to spatial attention in migraineurs with and 
      without aura symptoms support supposed differences in activation.
PG  - 413-6
AB  - It is to be expected that differences in electrical activity of the brain between 
      migraine patients with aura and those without aura can only be revealed by 
      stimuli that provoke visual spatial processing, i.e. stimuli that trigger so 
      called endogenous Visual Evoked Potential (VEP) activity. This is not the case 
      for the flashes and checkerboard reversals. Those stimuli elicited exogenous 
      activity only. During and between attacks the blood flow of migraineurs with aura 
      changes in the posterior cerebral part of the brain, which is assumed to be 
      specialized in the processing of spatial aspects of visual stimuli. Reaction 
      times (RTs), early and late Event Related Potential (ERP) differences were 
      compared at 12 scalp positions for two groups of migraineurs (with and without 
      aura) and a control group. They had to perform a passive attention task, 
      checkerboard reversals, and an active attention task, where attention was either 
      divided into or focussed at spatial locations. In agreement with many studies on 
      migraine, checkerboard stimuli did not differ on any early components. However, 
      RTs were faster for migraineurs with aura and their early components were 
      different when stimuli were highly attended. This is probably because these 
      stimuli can relatively easily trigger cortical activity due to an over activated 
      central mechanism and an enhanced level of attention.
FAU - Woestenburg, J C
AU  - Woestenburg JC
AD  - Department of Psychonomy, Free University, Amsterdam, The Netherlands.
FAU - Kramer, C J
AU  - Kramer CJ
FAU - Orlebeke, J F
AU  - Orlebeke JF
FAU - Passchier, J
AU  - Passchier J
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Headache
JT  - Headache
JID - 2985091R
SB  - IM
MH  - Adult
MH  - Attention/*physiology
MH  - Brain Mapping
MH  - Cerebral Cortex/physiopathology
MH  - *Electroencephalography
MH  - Evoked Potentials, Visual/*physiology
MH  - Female
MH  - Humans
MH  - Male
MH  - Migraine Disorders/*physiopathology
MH  - Orientation/*physiology
MH  - Pattern Recognition, Visual/*physiology
MH  - Reaction Time/physiology
EDAT- 1993/09/01 00:00
MHDA- 1993/09/01 00:01
CRDT- 1993/09/01 00:00
PHST- 1993/09/01 00:00 [pubmed]
PHST- 1993/09/01 00:01 [medline]
PHST- 1993/09/01 00:00 [entrez]
AID - 10.1111/j.1526-4610.1993.hed3308413.x [doi]
PST - ppublish
SO  - Headache. 1993 Sep;33(8):413-6. doi: 10.1111/j.1526-4610.1993.hed3308413.x.