Conscious Brain State Reprogramming Through Psychophysiological Self-Regulation: Dynamic Modulation of Neuroendocrine Markers and Functional Brain Activity — A Case Report

Abstract

Background. The interaction between psychological processes, neuroendocrine regulation, and functional brain activity remains an important topic in contemporary neuroscience. Although the effects of stress and emotional states on endocrine function have been extensively investigated, the possibility of deliberately inducing brain state reprogramming through conscious psychophysiological self-regulation and its associated neuroendocrine changes has received considerably less scientific attention.
Objective. To investigate neuroendocrine and quantitative electroencephalographic (QEEG) changes accompanying intentional brain state reprogramming induced through conscious psychophysiological self-regulation.
Methods
A study was conducted involving repeated laboratory and neurophysiological assessments of a single participant over three consecutive days. Daily measurements included serum cortisol, adrenocorticotropic hormone (ACTH), adrenaline, noradrenaline, dopamine, DHEA, BDNF, serotonin, and sex hormones. Quantitative electroencephalography (QEEG) was performed to assess spectral power across the principal EEG frequency bands.
Day 1 represented the participant's baseline condition following pronounced physical fatigue and served as the reference level of psychophysiological functioning.
During Day 2, an intensive psychophysiological intervention was performed to initiate the first stage of brain state reprogramming, involving conscious deepening of physical and emotional exhaustion, enhancement of subjective stress perception, and reduction of overall psychophysiological tone through internally directed cognitive-emotional self-regulation.
During Day 3, the participant intentionally transitioned into a psychophysiological state characterized by high intrinsic motivation, goal-directed behavior, readiness for action, decision-making, and implementation of new projects.
Results
The neuroendocrine profile demonstrated a distinct biphasic response accompanying the sequential changes in psychophysiological state. During the experimentally induced low-resource state, coordinated changes were observed across multiple regulatory systems. Cortisol, the principal biomarker of hypothalamic-pituitary-adrenal (HPA) axis activity, 

decreased from 428 to 296 nmol/L, while ACTH declined from 23.01 to 18.00 pg/mL. Simultaneously, sympathetic nervous system activity was reduced, as reflected by decreases in adrenaline (18 to <3.7 ng/L) and noradrenaline (528.4 to 251.3 ng/L). The most pronounced changes were observed in biomarkers associated with neuroplasticity and adaptive capacity. BDNFdecreased from 36.1 to 2.56 ng/mL, while peripheral serotonin declined from 309 to 47.7 μg/L, indicating a transient reduction in neuroplasticity-related and serotonergic activity during the experimentally induced state of psychophysiological exhaustion. Following the intentional transition into a goal-directed, action-oriented psychophysiological state on Day 3, the majority of biomarkers recovered toward baseline values. Cortisol increased to 401 nmol/L, ACTH to 24.7 pg/mL, adrenaline to 56 ng/L, noradrenaline to 374.7 ng/L, BDNF to 33.5 ng/mL, and serotonin to 312 μg/L.
QEEG recordings obtained during the intervention demonstrated enhanced delta and theta activity, preservation of a stable alpha peak around 9–10 Hz, and reduced beta-band power. This electrophysiological pattern is consistent with a state of deep internally directed attention, reduced externally oriented cognitive processing, and increased engagement of neural networks involved in internal information processing.
Conclusion. The present case report demonstrated that intentional brain state reprogramming through conscious psychophysiological self-regulation was accompanied by coordinated changes in neuroendocrine biomarkers and functional brain activity. The sequential transition from a state of pronounced psychophysiological exhaustion to a state characterized by high intrinsic motivation, goal-directed behavior, and readiness for purposeful action was accompanied by a corresponding reorganization of the hormonal profile involving the hypothalamic-pituitary-adrenal (HPA) axis, sympathetic nervous system activity, and biomarkers associated with neuroplasticity. These findings support further investigation of brain state reprogramming as a potential psychophysiological mechanism capable of influencing neuroendocrine regulation, functional brain dynamics, and adaptive physiological processes under controlled experimental conditions.