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Frequency-specific coupling between trial-to-trial fluctuations of neural responses and response-time variability

Adamo, Nicoletta ; Baumeister, Sarah ; Hohmann, Sarah ; Wolf, Isabella ; Holz, Nathalie ; Boecker, Regina ; Laucht, Manfred ; Banaschewski, Tobias ; Brandeis, Daniel

In: Journal of Neural Transmission, 2015, vol. 122, no. 8, p. 1197-1202

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    Title
    • Frequency-specific coupling between trial-to-trial fluctuations of neural responses and response-time variability
    Author
    • Adamo, Nicoletta. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    • Baumeister, Sarah. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    • Hohmann, Sarah. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    • Wolf, Isabella. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    • Holz, Nathalie. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    • Boecker, Regina. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    • Laucht, Manfred. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    • Banaschewski, Tobias. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    • Brandeis, Daniel. Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
    Document Type
    • Postprint
    OAI-PMH Identifier
    • oai:doc.rero.ch:332011
    Summary
    We assessed intra-individual variability of response times (RT) and single-trial P3 amplitudes following targets in healthy adults during a Flanker/NO-GO task. RT variability and variability of the neural responses coupled at the faster frequencies examined (0.07-0.17Hz) at Pz, the target-P3 maxima, despite non-significant associations for overall variability (standard deviation, SD). Frequency-specific patterns of variability in the single-trial P3 may help to understand the neurophysiology of RT variability and its explanatory models of attention allocation deficits beyond intra-individual variability summary indices such as SD.