Abstract
Selective serotonin reuptake inhibitors are the most commonly prescribed class of medications for patients with PTSD. However, many patients are not responsive to SSRIs and there is no rapid, uncomplicated way to determine who will benefit from this family of medications. Loudness dependence of auditory evoked potentials, a measure derived from auditory event-related potentials to a series of increasingly loud tones, appears to be strongly influenced by brain serotonin level and thereby holds considerable promise as an indicator of the brain’s potential responsiveness to SSRIs. The overarching goal of this chapter is to (a) describe the scientific rationale supporting the use of the LDAEP task in research advancing precision medicine approaches to the treatment of PTSD and (b) provide specific guidance to enable readers to administer this task in their own labs. Information regarding the requisite equipment is provided, as well as detailed instructions regarding the procedures for data collection, cleaning, and scoring.
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Abbreviations
- Cz:
-
Electrode placement at the central region of the cap on the midline
- EBA:
-
Electro-Based Adapter
- EEG:
-
Electroencephalogram
- ERP:
-
Event-Related Potentials
- Fz:
-
Electrode placement at the frontal region of the cap on the midline
- HEOR/HEOL:
-
Horizontal Electro Oculogram Right/Left
- LDAEP:
-
Loudness Dependence of Auditory Evoked Potentials
- M1/M2:
-
Left Mastoid/Right Mastoid
- Pz:
-
Electrode placement at the posterior region of the cap on the midline
- REF:
-
Reference
- SNRI:
-
Selective Norepinephrine Reuptake Inhibitor
- SSRI:
-
Selective Serotonin Reuptake Inhibitor
- VEOU/VEOL:
-
Vertical Electro Oculogram Upper/Lower
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Acknowledgments
Support for this work was provided by the Department of Veterans Affairs, Clinical Sciences R&D Service, Merit Award Program (CX001627-01A1; PI: Pineles).
Disclosures
Dr. Abi-Raad is affiliated with Compumedics USA Inc., the manufacturer and distributor of the hardware and software described in this report. Other authors report no conflicts of interest related to this study disclosure.
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Pineles, S.L., Pandey, S., Shor, R., Abi-Raad, R.F., Kimble, M.O., Orr, S.P. (2023). Loudness Dependence of Auditory Evoked Potentials: A Promising Pre-treatment Predictor of Selective Serotonin Reuptake Inhibitor Response. In: Pinna, G. (eds) Translational Methods for PTSD Research. Neuromethods, vol 198. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-3218-5_14
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DOI: https://doi.org/10.1007/978-1-0716-3218-5_14
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