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The development of visual P3a and P3b.

Stige, Signe; Fjell, Anders M; Smith, Lars; Lindgren, Magnus LU and Walhovd, Kristine B (2007) In Developmental Neuropsychology 32(1). p.563-584
Abstract
The relationship of visual P3a and P3b to age and neuropsychological performance was investigated in 26 healthy children (6.8–15.8 years) and 129 adult volunteers (20.0–88.8 years).Within the sample of children, an effect of age on midline topography was observed, with higher frontal amplitudes in the youngest compared to the oldest children. Increasing age was associated with lower P3a and P3b amplitude and shorter P3b latency at Fz. Performance on neuropsychological tests (matrix reasoning from WASI, digit span from WAIS, word order and hand movement from Kaufman) was only weakly associated with measures of P3a and P3b. The analyses were then repeated with the full life-span sample (n = 155). It was found that for P3a, amplitude... (More)
The relationship of visual P3a and P3b to age and neuropsychological performance was investigated in 26 healthy children (6.8–15.8 years) and 129 adult volunteers (20.0–88.8 years).Within the sample of children, an effect of age on midline topography was observed, with higher frontal amplitudes in the youngest compared to the oldest children. Increasing age was associated with lower P3a and P3b amplitude and shorter P3b latency at Fz. Performance on neuropsychological tests (matrix reasoning from WASI, digit span from WAIS, word order and hand movement from Kaufman) was only weakly associated with measures of P3a and P3b. The analyses were then repeated with the full life-span sample (n = 155). It was found that for P3a, amplitude decreased and latency increased with age. For P3b, the pattern was more complex, with a nonlinear amplitude reduction and no latency change with age. It appears that the development of P3a in children represents the start of processes that later continue in the adult life-span, but that the automatic processes indexed by P3a seems to mature earlier than the controlled processes reflected by P3b. Finally, it was demonstrated that the relationships between neuropsychological test scores (matrix reasoning, digit span) and P3 parameters were complex, following a mix of linear and nonlinear patterns. It is suggested that the neuropsychological significance of the different P3a and P3b parameters may change from childhood to the adult life-span. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Developmental Neuropsychology
volume
32
issue
1
pages
563 - 584
publisher
Psychology Press
external identifiers
  • wos:000248570000004
  • scopus:34547748846
ISSN
8756-5641
DOI
10.1080/87565640701361096
language
English
LU publication?
yes
id
a188b8a1-af50-4be7-bb2f-61bcc4cb2bb9 (old id 722036)
date added to LUP
2007-12-11 09:47:44
date last changed
2017-07-02 04:32:49
@article{a188b8a1-af50-4be7-bb2f-61bcc4cb2bb9,
  abstract     = {The relationship of visual P3a and P3b to age and neuropsychological performance was investigated in 26 healthy children (6.8–15.8 years) and 129 adult volunteers (20.0–88.8 years).Within the sample of children, an effect of age on midline topography was observed, with higher frontal amplitudes in the youngest compared to the oldest children. Increasing age was associated with lower P3a and P3b amplitude and shorter P3b latency at Fz. Performance on neuropsychological tests (matrix reasoning from WASI, digit span from WAIS, word order and hand movement from Kaufman) was only weakly associated with measures of P3a and P3b. The analyses were then repeated with the full life-span sample (n = 155). It was found that for P3a, amplitude decreased and latency increased with age. For P3b, the pattern was more complex, with a nonlinear amplitude reduction and no latency change with age. It appears that the development of P3a in children represents the start of processes that later continue in the adult life-span, but that the automatic processes indexed by P3a seems to mature earlier than the controlled processes reflected by P3b. Finally, it was demonstrated that the relationships between neuropsychological test scores (matrix reasoning, digit span) and P3 parameters were complex, following a mix of linear and nonlinear patterns. It is suggested that the neuropsychological significance of the different P3a and P3b parameters may change from childhood to the adult life-span.},
  author       = {Stige, Signe and Fjell, Anders M and Smith, Lars and Lindgren, Magnus and Walhovd, Kristine B},
  issn         = {8756-5641},
  language     = {eng},
  number       = {1},
  pages        = {563--584},
  publisher    = {Psychology Press},
  series       = {Developmental Neuropsychology},
  title        = {The development of visual P3a and P3b.},
  url          = {http://dx.doi.org/10.1080/87565640701361096},
  volume       = {32},
  year         = {2007},
}