The Impact of a Single Coaching Session on Affective State and Neurophysiological Markers: A Pilot Study


Basaranoglu K., ERGÜZEL T. T., KARAER ÜNALDI H., Komitoglu Yaman O.

INTERNATIONAL JOURNAL OF EVIDENCE BASED COACHING AND MENTORING, vol.24, no.3, pp.385-392, 2026 (ESCI, Scopus)

Abstract

This study examined whether a single coaching session produces psychological and measurable neurobiochemical effects. Fifteen participants with previous coaching expertise engaged in a one-group pretest and posttest design. High-performance liquid chromatography examined plasma dopamine-norepinephrine, and the Positive and Negative Affect Schedule rated mood. Positive affect exhibited a considerable enhancement (p = .002), while negative affect demonstrated a notable reduction (p = .006). Hormonal alterations were not statistically significant; nevertheless, a relative rise in dopamine and a reduction in norepinephrine were noted. These findings indicate that a single session has substantial immediate psychological advantages, and corresponding neurobiological patterns point to possible directions for further study.