Increase in Gamma Band qEEG Activity during Executive Coaching: Some Preliminary Observations and Possible Implications

Abstract

Executive coaching has become a well-established method of leadership development in many organizations. However, nothing is known about what effects coaching processes have on brain activity in understanding the neurobiological basis of behavioral changes. Using quantified electroencephalogram (qEEG) activity in the gamma-band range, this pilot study is the first attempt to elucidate the electro-cortical patterns that are induced during an executive coaching process whilst using a specific intervention called the CARE Model. Gamma-band oscillation has been related to gestalt perception, the state of consciousness, and cognitive functions. Synchronization of gamma-band has also been proposed as being involved in the mechanisms of functional integration underlying changes in neural circuitry. Despite the decades of gamma-band studies, the possibility that executive coaching might induce gamma-band oscillations has not yet been explored. The subjects were six top talent volunteers (male, mean age = 30). The EEG was recorded from 19 electrodes of the International 10/20 System in both the resting state as the baseline and the continuous 45-minute coaching session. Logarithmically transformed absolute spectral power values of gamma-band were calculated for 3s epochs; and a 182 epochs comparison of each CARE Model stage with the baseline was analyzed using Wilcoxon signed-rank test. Our preliminary qEEG observations show that gamma-band activity became significantly increased in the frontal and posterior regions of the subjects during the coaching process. These preliminary results suggest that the neural impact of executive coaching within the CARE Model may be to evoke a self-reflecting process, gestalt perception, and associative learning.

Keywords

executive coaching, leadership, gamma-band, neural oscillation, qEEG, consciousness, gestalt perception

References

Association for Coaching (AC). (2012). AC Coaching Competency Framework. Retrieved December, 10, 2017 from, https://www.associationforcoaching.com/

Bachirova, T., Cox, E., Clutterbuck, D. (2010). The Complete Handbook of Coaching. London: SAGE Publication Ltd.

Berkovich-Ohana, A., Glicksohn, J., and Goldstein, A. (2011). Mindfulness-Induced Changes in Gamma Band Activity – Implications for The Default Mode Network, Self-Reference and Attention. Clinical Neurophysiology, 123(2012), 700-710.

Bosman, CA., et.al. (2014). Functions of Gamma-Band Synchronization in Cognition: From Single Circuits to Functional Diversity Across Cortical and Subcortical Systems.European Journal of Neuroscience, 39, 1982–1999.

Cavanagh, M.J. and Grant, A.M. (2010). The Solution-Focused Approach to Coaching. In The Complete Handbook of Coaching (pp 54-67). London: SAGE Publication Ltd.

Cavanagh, MJ. and Spence, GB. (2013). Mindfulness in Coaching: Philosophy, psychology or just a useful skill? In The Wiley-Blackwell Handbook of the Psychology of Coaching and Mentoring (pp. 112-134), 1st edn. Hoboken, NJ: John Wiley & Sons, Ltd.

Delorme, A., Makeig, S. (2004). EEGLAB: an open source toolbox for analysis of single-trial EEG dynamics. Journal of Neuroscience Methods, 134:9-21.

Doesburg, SM., et.al. (2008). Large-Scale Gamma-Band Phase Synchronization and Selective Attention. Cerebral Cortex, 18(2008), 386-396.

Grant, A.M. (2012). An Integrated Model of Goal-Focused Coaching: An Evidence- Based Framework for Teaching and Practice. International Coaching Psychology Review, 7(2), 146-165.

Imam, A., Mohammed, U., and Moses-Abanyam, C. (2014). On Consistency and Limitation of Paired T-Test, Sign and Wilcoxon Sign Rank Test. IOSR Journal of Mathematics, 10(1), 01-06.

Kaiser, J and Lutzenberger, W. (2003). Induced Gamma-Band Activity and Human Brain Function. The Neuroscientist, 9(6), 475-484.

Kauffman et.al. (2010). The Positive Psychology Approach to Coaching. In The Complete Handbook of Coaching (pp 158-171). London: SAGE Publication Ltd.

Lutz A., et.al. (2004). Long-Term Meditators Self-Induce High-Amplitude Gamma Synchrony During Mental Practice. The National Academy of Sciences of the USA, 101(46), 16369–16373.

Miltner, WHR., et.al. (1999). Coherence of gamma-band EEG activity as a basis for associative learning. Nature, 397(1999), 434-436.

Puspa, L. (2016). Coaching Style Leadership: Transformational Leadershipwith CARE Coaching Model, 1st edn. Jakarta: Vanaya Coaching International.

Schoenberg, PLA., et.al. (2018). Mapping Complex Mind States: EEG Neural Substrates of Meditative Unified Compassionate Awareness. Consciousness and Cognition, 57(2018), 41-53.

Whitmore, J. (2009). Coaching for Performance: GROWing Human Potential and Purpose, 4th edn. London: Nicholas Brealey Publishing.

Yuval-Greenberg, S and Deouell, LY. (2007). What You See Is Not (Always) What You Hear: Induced Gamma Band Responses Reflect Cross-Modal Interactions in Familiar Object Recognition. J. Neurosci, 27(5), 1090-1096.

DOI : https://doi.org/10.32698/25263