PMID- 8541486
OWN - NLM
STAT- MEDLINE
DCOM- 19960213
LR  - 20220311
IS  - 0959-4965 (Print)
IS  - 0959-4965 (Linking)
VI  - 6
IP  - 13
DP  - 1995 Sep 11
TI  - Age-related functional differences between auditory cortices: a whole-head MEG 
      study.
PG  - 1803-6
AB  - Auditory evoked magnetic fields (AEFs) were recorded from 10 healthy younger and 
      10 older subjects using a whole-head magnetometer. Two blocks of tone pips were 
      presented to the left ear with constant inter-stimulus intervals (ISIs) of 0.5 
      and 2.5 s. The amplitude of P50m, unlike that of N100m, was larger in the older 
      subjects. In both groups, the peak latencies of P50m and N100m responses were 
      significantly shorter over the contralateral than ipsilateral cortex. The 
      interhemispheric latency difference of N100m was significantly increased with 
      age. These findings suggest that ageing delays signal processing in the 
      ipsilateral auditory cortex and that ageing affects consecutive AEFs in a 
      different manner.
FAU - Pekkonen, E
AU  - Pekkonen E
AD  - Department of Psychology, University of Helsinki, Finland.
FAU - Huotilainen, M
AU  - Huotilainen M
FAU - Virtanen, J
AU  - Virtanen J
FAU - Sinkkonen, J
AU  - Sinkkonen J
FAU - Rinne, T
AU  - Rinne T
FAU - Ilmoniemi, R J
AU  - Ilmoniemi RJ
FAU - Naatanen, R
AU  - Naatanen R
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Neuroreport
JT  - Neuroreport
JID - 9100935
SB  - IM
MH  - Acoustic Stimulation
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - Aging/*physiology
MH  - Analysis of Variance
MH  - Auditory Cortex/*physiology
MH  - Evoked Potentials, Auditory/*physiology
MH  - Female
MH  - Functional Laterality/physiology
MH  - Humans
MH  - Magnetics
MH  - Male
MH  - Middle Aged
MH  - Reaction Time/physiology
EDAT- 1995/09/11 00:00
MHDA- 1995/09/11 00:01
CRDT- 1995/09/11 00:00
PHST- 1995/09/11 00:00 [pubmed]
PHST- 1995/09/11 00:01 [medline]
PHST- 1995/09/11 00:00 [entrez]
AID - 10.1097/00001756-199509000-00023 [doi]
PST - ppublish
SO  - Neuroreport. 1995 Sep 11;6(13):1803-6. doi: 10.1097/00001756-199509000-00023.