|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ИНХС РАН |
||
Psychophysiological analysis of multidimensional structure of brightness perception in normal and altered states of consciousnessстатья Тезисы
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
- Авторы: Kiselnikov A.A., Pozdniakov I.S., Myasnichenko A.O., Vartanov A.V., Glozman J.M., Kozlovskiy S.A., Pyasik M.M.
- Журнал: International Journal of Psychophysiology
- Том: 94
- Номер: 2
- Год издания: 2014
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 196
- Последняя страница: 197
- DOI: 10.1016/j.ijpsycho.2014.08.810
- Аннотация: Background: Application of multidimensional scaling to studying color and brightness perception has solid history but complex brain-behavioral-subjective investigation has never been conducted. Brightness multidimensional spaces were researched in the school of thoughts of Russian academician E.N. Sokolov (2010). 2-dimensional spherical model of brightness perception was developed but this model has to be verified by evoked potentials. Moreover, Sokolovian approach dealing with multidimensional structure of perception can provide new paradigm of studying the dynamic of structure of consciousness. If in the case of altering consciousness subject reports expansion of consciousness via addition of new sensory / quasisensory phenomena it can be explained as addition of new axes to the perceptive space. Sokolovian paradigm can provide tools for testing this hypothesis. Study was (1) designed to get specified geometrical model of brightness discrimination via scaling data obtained from different levels of neurocognitive organization and (2) to test aforesaid hypothesis. Methods: (1) 9 homogeneous achromatic stimuli were successively presented on 22” CRT-screen. Brightness of stimuli was logarithmically distributed from 1 to 80 nit. 1.VEPs to abrupt changes of stimuli were recorded resulted in 9 × (9-1) = 72 VEPs. The amplitude of N87/P120 components was used as measure of interstimulus distances. 2. Simple reaction time to abrupt changes of stimuli was recorded 100 times per each 9 × (9-1) = 72 changes. The RT was treated as proximity measure. 3. Subjective estimation of dissimilarity in pairs was conducted (scale 0–9). (2) 5 experienced in open eyes-practicing subjects were successfully meditating with idea to see additional “unusual” aspects of aforementioned stimulation (e.g. “divine” white) while only passive VEP were recorded. Results: (1) Multidimensional scaling of complex brain-behavioral-subjective data resulted in two-dimensional (referring to Heggelund) and, moreover, spherical (referring to Sokolov) model. In the model 9 stimuli, strictly sequentially forming a semi-circle in the dual-dimensional perceptive space, may represent simultaneous activity of two reciprocal neuronal channels (Brightness- and Darkness-neurons, according to Jung). (2) We found that multidimensional scaling of 9 × 9 VEP matrix in normal and specifically altered state of consciousness proves that number of extracted neuronal axes is tending to expand in case of specific expansion of consciousness (to more than 2 axes). It can be explained as inclusion of new neuronal population in addition to B- and D-neurons. Conclusion: Two-dimensional model of brightness perception is verified and Sokolovian ‘Vector psychophysiology’ approach is proved as a valid paradigm to study the dynamic of structure of consciousness.
- Добавил в систему: Козловский Станислав Александрович