Article

Frontal brain oscillatory coupling among men who vary in salivary testosterone levels

McMaster Integrative Neuroscience Discovery and Study, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada.
Neuroscience Letters (Impact Factor: 2.03). 09/2009; 464(3):239-42. DOI: 10.1016/j.neulet.2009.08.059
Source: PubMed

ABSTRACT

Recent studies suggest that cross-frequency coupling supports the integration of distinct neuronal oscillatory modes. In particular, spectral coupling between slow-wave delta and fast-wave beta oscillations may reflect subcortical-cortical interactions. Prior experiments have shown that delta-beta coupling appears to be sensitive to steroid hormone patterning. We attempted to extend this hypothesis by examining the relation between delta-beta EEG spectral coupling and endogenous testosterone measures in men. We collected resting regional brain electrical (EEG) activity and salivary testosterone from 34 healthy young adult males (M age=24 years). Males with high testosterone showed non-significant delta-beta coupling (delta-beta decoupling), while males with low testosterone exhibited significant delta-beta coupling. These relations were only found for the frontal brain region. There was also a significant group difference in the magnitude of coupling, but no differences in absolute delta and beta power. Findings are discussed in terms of emerging evidence relating steroid hormones to cross-frequency spectral coupling and directions for future work.

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    • "In the parallel research of emotion and hormone production, Schutter et al (2005) found that the high salivary cortisol levels group significant coupling the midfrontal delta­ beta oscillation more than the low salivary cortisol levels group [5]. Miskovic et al (2009) found that high salivary testosterone levels were not significant on delta-beta coupling but low testosterone levels exhibited significant on delta-beta coupling at the frontal region of the brain [6]. However, the correlation and connection between color and physiological, psychological, brain activity, hormone production is still inconclusive. "
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    DESCRIPTION: The 2014 Biomedical Engineering International Conference (BMEiCON-2014)
    Full-text · Research · Apr 2015
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    • "Miskovic et al. (2011) showed that after successful behavioral therapy, delta–beta couplings in the clinical group normalized by the post-treatment assessment. Testosterone values were reported to be related to delta–beta coupling, with higher basal testosterone values related to reduced delta–beta coupling (Miskovic and Schmidt, 2009), and reduced delta–beta coupling was also reported after testosterone administration (Schutter and van Honk, 2004). On the other, hand higher cortisol values were related to increased delta–beta coupling (Schutter and van Honk, 2005), and, after cortisol administration, increased delta–beta coupling was also reported (van Peer et al., 2008). "
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    ABSTRACT: In the last decade, the brain's oscillatory responses have invaded the literature. The studies on delta (0.5-3.5Hz) oscillatory responses in humans upon application of cognitive paradigms showed that delta oscillations are related to cognitive processes, mainly in decision making and attentional processes. The present manuscript comprehensively reviews the studies on delta oscillatory responses upon cognitive stimulation in healthy subjects and in different pathologies, namely Alzheimer's disease, Mild Cognitive Impairment (MCI), bipolar disorder, schizophrenia and alcoholism. Further delta oscillatory response upon presentation of faces, facial expressions, and affective pictures are reviewed. The relationship between pre-stimulus delta activity and post-stimulus evoked and event-related responses and/or oscillations are discussed. Cross-frequency couplings of delta oscillations with higher frequency windows are also included in the review. The conclusion of this review includes several important remarks, including that delta oscillatory responses are involved in cognitive and emotional processes. A decrease of delta oscillatory responses could be a general electrophysiological marker for cognitive dysfunction (Alzheimer's disease, MCI, bipolar disorder, schizophrenia and alcoholism). The pre-stimulus activity (phase or amplitude changes in delta activity) has an effect on post-stimulus EEG responses. Copyright © 2015. Published by Elsevier B.V.
    Full-text · Article · Feb 2015 · International journal of psychophysiology: official journal of the International Organization of Psychophysiology
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    • "In the parallel research of emotion and hormone production, Schutter et al (2005) found that the high salivary cortisol levels group significant coupling the midfrontal delta­ beta oscillation more than the low salivary cortisol levels group [5]. Miskovic et al (2009) found that high salivary testosterone levels were not significant on delta-beta coupling but low testosterone levels exhibited significant on delta-beta coupling at the frontal region of the brain [6]. However, the correlation and connection between color and physiological, psychological, brain activity, hormone production is still inconclusive. "
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    ABSTRACT: The color and light have effect on physiology, psychology, cognitive performance and hormone production in the human. In this paper, we aim to study red and blue color with their effect on brain activity, cardiovascular activity, emotion and saliva hormone. Each participant was testing in red and blue room. Participant was measure the EEG, ECG, SpO2, pulse rate, saliva hormone (melatonin, cortisol, testosterone, progesterone, estradiol and DHEAS), and emotion. The results showed that red room regulates the tension, anger, vigor and confusion moods which stimulate significant increasing of the pulse rate and SpO2 and cortisol levels but blue room regulates the depression and fatigue. The brain activity of high beta wave (25-30 Hz) was high at the occipital lobe and little high at frontal lobe in red room but the blue room was high at frontal lobes only. The coherence of high beta wave was not difference in both rooms. The Gonadal and melatonin hormone were not clearly changing in red and blue room.
    Full-text · Conference Paper · Nov 2014
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