PMID- 57046
OWN - NLM
STAT- MEDLINE
DCOM- 19760706
LR  - 20191210
IS  - 0013-4694 (Print)
IS  - 0013-4694 (Linking)
VI  - 40
IP  - 6
DP  - 1976 Jun
TI  - Selective attention and the auditory vertex potential. I. Effects of stimulus 
      delivery rate.
PG  - 604-14
AB  - In a selective attention task, twelve subjects received random sequences of 800 
      and 1500 c/sec tone pips in their right and left ears, respectively. They were 
      instructed to attend to one channel (ear) of tones, to ignore the other, and to 
      press a button whenever occasional "targets", tones of a slightly higher pitch, 
      were detected in the attended ear. In separate experimental conditions the 
      randomized interstimulus intervals (ISIs) were "short" (averaging 350 msec), 
      "medium" (960 mes) and "long" (1920 msec). The N1 component of the auditory 
      evoked potential (latency 80--130 msec) was found to be enlarged to all stimuli 
      in an attended channel (both targets and non-targets) but only in the short ISI 
      condition. Thus, a high "information load" appears to be a prerequisite for 
      producing channel-selective enhancement of the N1 wave; this high load condition 
      was also associated with the most accurate target detectability scores (d'). The 
      pattern of attention-related effects on N1 was dissociated from the pattern 
      displayed by the subsequent P3 wave (300--450 msec), substantiating the view that 
      the two waves are related to different modes of selective attention.
FAU - Schwent, V L
AU  - Schwent VL
FAU - Hillyard, S A
AU  - Hillyard SA
FAU - Galambos, R
AU  - Galambos R
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - Ireland
TA  - Electroencephalogr Clin Neurophysiol
JT  - Electroencephalography and clinical neurophysiology
JID - 0375035
SB  - IM
MH  - Adult
MH  - Attention/*physiology
MH  - Auditory Perception/*physiology
MH  - Discrimination, Psychological/physiology
MH  - *Evoked Potentials
MH  - Female
MH  - Functional Laterality
MH  - Humans
MH  - Male
MH  - Reaction Time
MH  - Time Factors
EDAT- 1976/06/01 00:00
MHDA- 1976/06/01 00:01
CRDT- 1976/06/01 00:00
PHST- 1976/06/01 00:00 [pubmed]
PHST- 1976/06/01 00:01 [medline]
PHST- 1976/06/01 00:00 [entrez]
AID - 0013-4694(76)90135-8 [pii]
AID - 10.1016/0013-4694(76)90135-8 [doi]
PST - ppublish
SO  - Electroencephalogr Clin Neurophysiol. 1976 Jun;40(6):604-14. doi: 
      10.1016/0013-4694(76)90135-8.