A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Crossmodal temporal processing acuity impairment aggravates with age in developmental dyslexia
Tekijät: Virsu V, Lahti-Nuuttila P, Laasonen M
Kustantaja: ELSEVIER SCI IRELAND LTD
Julkaisuvuosi: 2003
Lehti: Neuroscience Letters
Tietokannassa oleva lehden nimi: NEUROSCIENCE LETTERS
Lehden akronyymi: NEUROSCI LETT
Vuosikerta: 336
Numero: 3
Aloitussivu: 151
Lopetussivu: 154
Sivujen määrä: 4
ISSN: 0304-3940
DOI: https://doi.org/10.1016/s0304-3940(02)01253-3
Tiivistelmä
Temporal processing has been found to be impaired in developmental dyslexia. We investigated how aging affects crossmodal temporal processing impairment with 39 dyslexic and 40 fluent 20-59-year-old readers. Cognitive temporal acuity was measured at millisecond levels in six tasks. They consisted of order judgments of two brief non-speech stimulus pulses, the stimuli being audiotactile, visuotactile and audiovisual, and of simultaneity/nonsimultaneity detection of the pulses in two parallel three-pulse trains. Temporal acuity declined with age in both reading groups and its impairment was observed in developmental dyslexia. A new finding was that the crossmodal temporal impairment, directly relevant to reading, increased with age. The age-related exacerbation suggests a developmental neuronal deficit, possibly related to magnocells, which exists before dyslexia and is its ontogenetic cause. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
Temporal processing has been found to be impaired in developmental dyslexia. We investigated how aging affects crossmodal temporal processing impairment with 39 dyslexic and 40 fluent 20-59-year-old readers. Cognitive temporal acuity was measured at millisecond levels in six tasks. They consisted of order judgments of two brief non-speech stimulus pulses, the stimuli being audiotactile, visuotactile and audiovisual, and of simultaneity/nonsimultaneity detection of the pulses in two parallel three-pulse trains. Temporal acuity declined with age in both reading groups and its impairment was observed in developmental dyslexia. A new finding was that the crossmodal temporal impairment, directly relevant to reading, increased with age. The age-related exacerbation suggests a developmental neuronal deficit, possibly related to magnocells, which exists before dyslexia and is its ontogenetic cause. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
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