PMID- 1374704
OWN - NLM
STAT- MEDLINE
DCOM- 19920616
LR  - 20190721
IS  - 0013-4694 (Print)
IS  - 0013-4694 (Linking)
VI  - 82
IP  - 5
DP  - 1992 May
TI  - Intermodal selective attention. II. Effects of attentional load on processing of 
      auditory and visual stimuli in central space.
PG  - 356-68
AB  - The effect of processing load on event-related brain potentials (ERPs) was 
      investigated in an intermodal selective attention task in which subjects attended 
      selectively to auditory or visual stimuli. Processing load was manipulated by 
      requiring subjects to detect either difficult-to-detect (deviant) or 
      easy-to-detect (DEVIANT) targets in separate blocks of trials. Attention to 
      auditory stimuli was associated with negative (Nda, 90-170 msec) and positive 
      (Pda, 190-270 msec) enhancements in the ERPs to auditory stimuli. The Nda 
      increased in amplitude with increasing processing load. Deviant auditory stimuli 
      occurring among auditory standard stimuli elicited frontally distributed mismatch 
      negativities (MMNs). The MMN persisted during visual attention and was unaffected 
      by visual processing load. However, the MMN to deviants but not DEVIANTS was 
      enhanced in amplitude with auditory attention. Attention to visual stimuli 
      resulted in positive (Pdv, latency 70-130 msec) and negative (Ndv, 170-270 msec) 
      modulations of visual ERPs, that increased with increasing processing load. 
      Prominent visual deviance-related negativities were observed at occipital and 
      infero-temporal scalp sites (latencies 90-290 msec), but only to DEVIANT visual 
      stimuli. The early MMN-like portion of the visual deviance-related negativity was 
      independent of attention, with equal amplitudes during different auditory and 
      visual conditions.
FAU - Alho, K
AU  - Alho K
AD  - Department of Neurology, UC Davis, VA Medical Center, Martinez 94553.
FAU - Woods, D L
AU  - Woods DL
FAU - Algazi, A
AU  - Algazi A
FAU - Naatanen, R
AU  - Naatanen R
LA  - eng
GR  - F05 TW04283/TW/FIC NIH HHS/United States
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PT  - Research Support, U.S. Gov't, P.H.S.
PL  - Ireland
TA  - Electroencephalogr Clin Neurophysiol
JT  - Electroencephalography and clinical neurophysiology
JID - 0375035
SB  - IM
MH  - Acoustic Stimulation
MH  - Adolescent
MH  - Adult
MH  - Attention/*physiology
MH  - Auditory Perception/*physiology
MH  - Cerebral Cortex/physiology
MH  - Evoked Potentials, Auditory
MH  - Evoked Potentials, Visual
MH  - Female
MH  - Humans
MH  - Male
MH  - Visual Perception/*physiology
EDAT- 1992/05/01 00:00
MHDA- 1992/05/01 00:01
CRDT- 1992/05/01 00:00
PHST- 1992/05/01 00:00 [pubmed]
PHST- 1992/05/01 00:01 [medline]
PHST- 1992/05/01 00:00 [entrez]
AID - 0013-4694(92)90005-3 [pii]
AID - 10.1016/0013-4694(92)90005-3 [doi]
PST - ppublish
SO  - Electroencephalogr Clin Neurophysiol. 1992 May;82(5):356-68. doi: 
      10.1016/0013-4694(92)90005-3.