The viability of the frequency following response characteristics for use as biomarkers of cognitive therapeutics in schizophrenia

SCHIZOPHRENIA RESEARCH

卷:243

Article

Clayson, Peter E.^1,8  Joshi, Yash B.^2,3  Thomas, Michael L.⁴  Tarasenko, Melissa^3,7  Bismark, Andrew^3,7  Sprock, Joyce³  Nungaray, John³  Cardoso, Lauren³  Wynn, Jonathan K.^5,6  Swerdlow, Neal R.³ 

[1] Univ S Florida, Dept Psychol, Tampa, FL USA

[2] San Diego VA Healthcare Syst, VISN 22 Mental Illness Res Educ & Clin Ctr MIRECC, San Diego, CA USA

[3] Univ Calif San Diego, Dept Psychiat, San Diego, CA USA

[4] Colorado State Univ, Dept Psychol, Ft Collins, CO USA

[5] Vet Affairs Greater Angeles Healthcare Syst, Los Angeles, CA USA

[6] Univ Calif Los Angeles, David Geffen Sch Med, Dept Psychiat & Biobehav Sci, Los Angeles, CA USA

[7] VA San Diego Healthcare Syst, San Diego, CA USA

[8] Univ S Florida, Dept Psychol, 4202 East Fowler Ave, Tampa, FL 33620 USA

关键词: Internal consistency;    Frequency following response (FFR);    Event-related brain potential (ERP);    Schizophrenia;    Auditory processing;    ERP reliability;   

DOI  :  10.1016/j.schres.2021.06.022

来源: Elsevier

【 摘 要 】

Deficits in early auditory information processing contribute to cognitive and psychosocial disability; this has prompted development of interventions that target low-level auditory processing, which may alleviate these disabilities. The frequency following response (FFR) is a constellation of event-related potential and frequency characteristics that reflect the processing of acoustic stimuli at the level of the brainstem and ascending portions of the auditory pathway. While FFR is a promising candidate biomarker of response to auditory-based cognitive training interventions, the psychometric properties of FFR in schizophrenia patients have not been studied. Here we assessed the psychometric reliability and magnitude of group differences across 18 different FFR parameters to determine which of these parameters demonstrate adequate internal consistency. Electroencephalography from 40 schizophrenia patients and 40 nonpsychiatric comparison subjects was recorded during rapid presentation of an auditory speech stimulus (6000 trials). Patients showed normal response amplitudes but longer latencies for most FFR peaks and lower signal-to-noise ratios (SNRs) than healthy subjects. Analysis of amplitude and latency estimates of peaks, however, indicated a need for a substantial increase in task length to obtain internal consistency estimates above 0.80. In contrast, excellent internal consistency (>0.95) was shown for FFR sustained responses. Only SNR scores reflecting the FFR sustained response yielded significant group differences and excellent internal consistency, suggesting that this measure is a viable candidate for use in clinical treatment studies. The present study highlights the use of internal consistency estimates to select FFR characteristics for use in future intervention studies interested in individual differences among patients.

【 授权许可】

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