PMID- 25003553
OWN - NLM
STAT- MEDLINE
DCOM- 20151113
LR  - 20211021
IS  - 1872-7697 (Electronic)
IS  - 0167-8760 (Linking)
VI  - 95
IP  - 2
DP  - 2015 Feb
TI  - Atypical auditory refractory periods in children from lower socio-economic status 
      backgrounds: ERP evidence for a role of selective attention.
PG  - 156-66
LID - S0167-8760(14)00168-8 [pii]
LID - 10.1016/j.ijpsycho.2014.06.017 [doi]
AB  - Previous neuroimaging studies indicate that lower socio-economic status (SES) is 
      associated with reduced effects of selective attention on auditory processing. 
      Here, we investigated whether lower SES is also associated with differences in a 
      stimulus-driven aspect of auditory processing: the neural refractory period, or 
      reduced amplitude response at faster rates of stimulus presentation. Thirty-two 
      children aged 3 to 8 years participated, and were divided into two SES groups 
      based on maternal education. Event-related brain potentials were recorded to 
      probe stimuli presented at interstimulus intervals (ISIs) of 200, 500, or 1000 
      ms. These probes were superimposed on story narratives when attended and ignored, 
      permitting a simultaneous experimental manipulation of selective attention. 
      Results indicated that group differences in refractory periods differed as a 
      function of attention condition. Children from higher SES backgrounds showed full 
      neural recovery by 500 ms for attended stimuli, but required at least 1000 ms for 
      unattended stimuli. In contrast, children from lower SES backgrounds showed 
      similar refractory effects to attended and unattended stimuli, with full neural 
      recovery by 500 ms. Thus, in higher SES children only, one functional consequence 
      of selective attention is attenuation of the response to unattended stimuli, 
      particularly at rapid ISIs, altering basic properties of the auditory refractory 
      period. Together, these data indicate that differences in selective attention 
      impact basic aspects of auditory processing in children from lower SES 
      backgrounds.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Stevens, Courtney
AU  - Stevens C
AD  - Willamette University, Department of Psychology, 900 State Street, Salem, OR 
      97301, United States. Electronic address: cstevens@willamette.edu.
FAU - Paulsen, David
AU  - Paulsen D
AD  - University of Pittsburgh Medical Center, 121 Meyran Avenue, Pittsburgh, PA 15213, 
      United States.
FAU - Yasen, Alia
AU  - Yasen A
AD  - Willamette University, Department of Psychology, 900 State Street, Salem, OR 
      97301, United States.
FAU - Neville, Helen
AU  - Neville H
AD  - University of Oregon, Department of Psychology, 1227 University of Oregon, 
      Eugene, OR 97403, United States.
LA  - eng
GR  - R01 DC000481/DC/NIDCD NIH HHS/United States
GR  - DC00481/DC/NIDCD NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Research Support, Non-U.S. Gov't
DEP - 20140706
PL  - Netherlands
TA  - Int J Psychophysiol
JT  - International journal of psychophysiology : official journal of the International 
      Organization of Psychophysiology
JID - 8406214
SB  - IM
MH  - Acoustic Stimulation
MH  - Analysis of Variance
MH  - Attention/*physiology
MH  - Auditory Perception/*physiology
MH  - Brain Mapping
MH  - Child
MH  - Child, Preschool
MH  - Decision Making/*physiology
MH  - Electroencephalography
MH  - Evoked Potentials, Auditory/*physiology
MH  - Female
MH  - Humans
MH  - Male
MH  - Psychoacoustics
MH  - Psycholinguistics
MH  - Reaction Time
MH  - *Social Class
OTO - NOTNLM
OT  - Attention
OT  - Auditory processing
OT  - ERP
OT  - Refractory periods
OT  - SES
OT  - Socioeconomic status
EDAT- 2014/07/09 06:00
MHDA- 2015/11/14 06:00
CRDT- 2014/07/09 06:00
PHST- 2013/09/15 00:00 [received]
PHST- 2014/06/13 00:00 [revised]
PHST- 2014/06/29 00:00 [accepted]
PHST- 2014/07/09 06:00 [entrez]
PHST- 2014/07/09 06:00 [pubmed]
PHST- 2015/11/14 06:00 [medline]
AID - S0167-8760(14)00168-8 [pii]
AID - 10.1016/j.ijpsycho.2014.06.017 [doi]
PST - ppublish
SO  - Int J Psychophysiol. 2015 Feb;95(2):156-66. doi: 10.1016/j.ijpsycho.2014.06.017. 
      Epub 2014 Jul 6.