Temporal information processing as a basis for auditory comprehension: clinical evidence from aphasic patients

Anna Oroń , Aneta Szymaszek , Elżbieta Szeląg

Abstract

Background: Temporal information processing (TIP) underlies many aspects of cognitive functions like language, motor control, learning, memory, attention, etc. Millisecond timing may be assessed by sequencing abilities, e.g. the perception of event order. It may be measured with auditory temporal-order-threshold (TOT), i.e. a minimum time gap separating two successive stimuli necessary for a subject to report their temporal order correctly, thus the relation ‘before–after’. Neuropsychological evidence has indicated elevated TOT values (corresponding to deteriorated time perception) in different clinical groups, such as aphasic patients, dyslexic subjects or children with specific language impairment. Aims: To test relationships between elevated TOT and declined cognitive functions in brain-injured patients suffering from post-stroke aphasia. Methods & Procedures: We tested 30 aphasic patients (13 male, 17 female), aged between 50 and 81 years. TIP comprised assessment of TOT. Auditory comprehension was assessed with the selected language tests, i.e. Token Test, Phoneme Discrimination Test (PDT) and Voice-Onset-Time Test (VOT), while two aspects of attentional resources (i.e. alertness and vigilance) were measured using the Test of Attentional Performance (TAP) battery. Outcomes & Results: Significant correlations were indicated between elevated values of TOT and deteriorated performance on all applied language tests. Moreover, significant correlations were evidenced between elevated TOT and alertness. Finally, positive correlations were found between particular language tests, i.e. (1) Token Test and PDT; (2) Token Test and VOT Test; and (3) PDT and VOT Test, as well as between PDT and both attentional tasks. Conclusions & Implications: These results provide further clinical evidence supporting the thesis that TIP constitutes the core process incorporated in both language and attentional resources. The novel value of the present study is the indication for the first time in Slavic language users a clear coexistence of the ‘timing–auditory comprehension– attention’ relationships.
Author Anna Oroń
Anna Oroń,,
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, Aneta Szymaszek - [Nencki Institute of Experimental Biology (IBD PAN)]
Aneta Szymaszek,,
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- Instytut Biologii Doświadczalnej im. M. Nenckiego PAN
, Elżbieta Szeląg (Wydział Psychologii)
Elżbieta Szeląg,,
- Wydział Psychologii
Journal seriesInternational Journal of Language & Communication Disorders, ISSN 1368-2822, (A 30 pkt)
Issue year2015
Vol50
No5
Pages604-615
Publication size in sheets0.55
ASJC Classification3616 Speech and Hearing; 3310 Linguistics and Language; 1203 Language and Linguistics
DOIDOI:10.1111/1460-6984.12160
URL http://onlinelibrary.wiley.com/doi/10.1111/1460-6984.12160/pdf
Languageen angielski
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ESzeląg Temporal information processing as a basis for auditory comprehension.pdf 64.93 KB
Additional file
BROWN_IR-ADV5255_16_0107_001-36.pdf 32.2 KB
Score (nominal)30
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2015 = 1.373; WoS Impact Factor: 2015 = 1.798 (2) - 2015=1.864 (5)
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