The influence of wrist tapping based on the author’s methodology on the dynamics of intrahemispheric integration and ‘internal’ rhythm in healthy adults

The goal The goal is to study the lateralization of changes in intrahemispheric coherence in accordance with the basic rhythms of electroen- cephalography in healthy young people under the influence of tapping on the wrist in accordance with the author’s technique.

Materials and methods: The conduct of this study was approved by the ethics com- mittee of KrasGMU. prof. V. F. Voyno-Yasenetsky (protocol No. 77/2017 of 06/26/2017). The study of the infl  of wrist tapping according to the author’s technique on the coefficient of intrahemispheric coherence of the cerebral cortex in healthy volunteers (n2=63). Wrist tapping was carried out using the original technique (RF patent No. 2606489 of 01/10/2017). The analysis of intrahemispheric coherence in the pairs F3–T5, T5–O1, F3–O1, F4–T6, T6–O2, F4–O2 was carried out using a com- puter encephalographic complex (Neurocartograph, MBN Moscow).

Results and discussions: According to the studies, it was shown that under the influence of tapping the hand according to the author’s technique, the state of sensory deprivation (closed eyes), statistically signifi changes in hemisphere coherence in theta and beta rhythms were not found, p>0.05, however, we showed a statistically significant (p<0.05) de- crease in hemisphere alpha-rhythm coherence in the right hemisphere in pairs F4–T4 (p=0.0000793) and F4–O2 (p=0.01711824), while the median coherence coeffi  before and after tapping changed from 0.27 to 0.315 and from 0.13 to 0.175, respectively. At that time, we did not find statistically significant changes in the coherence of the hemisphere in similar pairs of the left hemisphere p>0.05. As a result of this study, when the wrist tapping was opened with the eyes of the subjects open, statistically significant changes in the coherence of the hemispheric alpha rhythm were detected only in the F3–O1 pair of the left hemisphere (p = 0.0000147), but not in the right hemisphere. At the same time, when the eyes of the volunteers were closed, there were no statistically significant changes in the coherence of the hemisphere in the theta and beta rhythms in both the left and right hemispheres.

Conclusion. Thus, the use of tapping the wrist according to the author’s technique with the left hand in right-handed people in a state of sensory deprivation is promising for practical use in neurological practice, in particular in the management of patients with epilepsy and panic attacks, since a patient previously trained by the attending physician — neurorehabilitation, can use this the author’s program on his smartphone, in the case of an epileptic aura of focal epileptic seizures or precursors of panic attacks. However, the clinical application of the author’s technique needs detailed research.

1. Fusar-Poli P., Placentino A., Carletti F., Allen P., Landi P., Abbamonte M., Barale F., Perez J., McGuire P., Politi P. L. Laterality effect on emotional faces processing: ALE meta-analysis of evidence. Neurosci. Lett. — 2009; 452(3): 262–67. DOI: 10.1016/j.neulet.2009.01.065.

2. Prete G., Capotosto P., Zappasodi F., Tommasi L. Contrasting hemispheric asymmetries for emotional processing from event-related potentials and behavioral responses. Biol. Psychol. — 2010; 84(3): 451–62. DOI: 10.1016/j.biopsycho.2009.08.010.

3. Baijal S., Srinivasan N. Emotional and hemispheric asymmetries in shifts of attention: an ERP study. Cogn. Emot. — 2011; 25(2): 280–94. DOI:10.1080/02699931.2010.492719.

4. Pizzagalli D. A., Sherwood R. J., Henriques J. B., Davidson R. J. Frontal brain asymmetry and reward responsiveness a source-localization study. Psychol. Sci. — 2005; 16(10): 805–13.

5. Harmon-Jones E., Gable P. A., Peterson C. K. The role of asymmetric frontal cortical activity in emotion-related phenomena: a review and update. Biol. Psychol. — 2010; 84(3): 451–62. DOI: 10.1016/j.biopsycho.2009.08.010.

6. Narumoto J., Okada T., Sadato N., Fukui K., Yonekura Y. Attention to emotion modulates fMRI activity in human right superior temporal sulcus. Brain Res. Cogn. Brain Res. — 2001. — 12(2). — 225–31.

7. Sato W., Kochiyama T., Yoshikawa S., Naito E., Matsumura M. Enhanced neural activity in response to dynamic facial expressions of emotion: an fMRI study. Brain Res. Cogn. Brain Res. — 2004. — 20(1): 81–91.

8. Gainotti G. Unconscious processing of emotions and the right hemisphere. Neuropsychologia. — 2012. — 50(2). — 205–218. DOI: 10.1016/j.neuropsychologia.2011.12.005.

9. Jansari A., Rodway P., Goncalves S. Identifying facial emotions: valence specific effects and an exploration of the effects of viewer gender. Brain Cogn. — 2011; 76(3): 415–23. DOI: 10.1016/j.bandc.2011.03.009.

10. Poole B. D., Gable P. A. Affective motivational direction drives asymmetric frontal hemisphere activation. Exp. Brain Res. — 2014; 232(7): 2121–30.

11. von Stein A., Sarnthein J. Different frequencies for different scales of cortical integration: from local gamma to long range alpha/theta synchronization. Int. J. Psychophysiol. — 2000. — 38(3): 301–13. DOI: 10.1016/S0167–8760(00)00172–0.

12. Barbas H. Connections underlying the synthesis of cognition, memory, and emotion in primate prefrontal cortices. Brain Res. Bull. — 2000 — 52(5): 319–30.

13. Народова Е. А., Шнайдер Н. А., Народова В. В., Ерахтин Е. Е., Шилкина О. С., Москалева П. В. Влияние тревоги на параметры кистевого теппинга и индивидуальную минуту у здоровых взрослых и пациентов с юношеской миоклонической эпилепсией. Психосоматические и интегративные исследования — 2018. — 4: 0404.

14. Иванов Л. Б. Состояние внутри- и межполушарной интеграции по данным когерентного анализа ЭЭГ у здоровых детей и при патологии. В кн.: Материалы международной конференции «Клинические нейронауки: нейрофизиология, неврология, нейрохирургия», V Восточно-Европейской конференции «Эпилепсия и клиническая нейрофизиология». Ялта-Гурзуф, 01–10 июня 2003 г. Гурзуф; — 2003: 32–35.

15. Güntekin B., Başar E. A review of brain oscillations in perception of faces and emotional pictures. Neuropsychologia. — 2014. — 58 — 33–51. DOI: 10.1016/j.neuropsychologia.2014.03.014.

16. Jamal W., Das S., Maharatna K., Pan I., Kuyucu D. Brain connectivity analysis from EEG signals using stable phase-synchronized states during face perception tasks. Phys. A: Stat. Mech. Appl. — 2015. — 434: 273–95. DOI: 10.1016/j.physa. 2015.03.087.

17. Мордык А. В., Удалова Т. Ю., Пузырева Л. В., Леденева Т. Н., Ситникова С. В. Сравнение личностных особенностей у впервые выявленных больных инфильтративным туберкулезом легких и с сочетанной инфекцией ВИЧ/туберкулез// Сибирское медицинское обозрение. — 2015. — № 2 (92). — С. 68–72.