Vector Psychophysiological Approach to Constructing Combined Color-Emotional Semantic SpaceстатьяТезисы
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 8 января 2017 г.
Аннотация:Background: Emotion and color at natural and semantic levels are important domains of mental functioning. We studied psychophysiological mechanisms of interrelations between these domains using multidimensional approach. This approach assumes that utilization of multidimensional scaling to subjective and electrophysiological differences between elements of emotion and color domains can produce multidimensional subjective and electrophysiological geometrical spaces. These spaces lead to mathematical model, which integrates psychological and physiological levels of functioning (‘Vector Psychophysiology’ school of thoughts, E.N. Sokolov, 2013). Methods: In psychophysical series every possible combination of 20 Russian words (10 basic color and 10 basic emotions) was presented to 50 subjects (25 males, 18-36 y.o.) 5 times. They needed to scale each difference from 1 to 9. We selected semantic format (vs. natural format) of colors and emotions to use the same subjective / electrophysiological metrics to estimate color-emotion, color-color and emotion-emotion semantic differences. One 20*20 full matrix and two 10*10 (color and emotional) submatrices were averaged and non-metrically multidimensionally scaled. In EEG series each of 20 stimuli were presented to subject 100 times in quasi-random order. They categorized every stimulus as belonging to ‘Color’ or ‘Emotion’ categories. 19-channel EEG was recorded and 600-ms ERPs to each of the 20 stimuli were calculated and group-averaged. Wave forms of 20 obtained ERPs were intercorrelated (Pearson R) in every of the 19 leads in each of six 100-ms epochs and 114 (19*6) 20*20 full ‘correlational’ EEG-matrices and 10*10 color and emotional EEG-submatrices were analyzed. Results and Discussion: 1. The psychophysical emotional subspace is four-dimensional and spherical (that corresponds to Sokolovian global spherical model) and is represented by 4 bipolar axes: ‘Pleasure’, ‘Arousal’, ‘Dominance’, which are very similar to Mehrabian & Russell (1974) PAD model and ‘Social Condemnation’ axis (‘Shame, Disgust & Contempt’). 2. The semantic color subspace is also 4D & spherical and is represented by 4 bipolar axes: 2 chromatic (‘Green-Red’, ‘Blue-Yellow’), ‘Intensity’ and ‘Contrast Grey’ (achromatic vs. chromatic but not in the order of saturation). 3. The full semantic space is 4D & spherical and it mainly repeats emotional axes hence color system has been substantially overwhelmed by the emotional one. 4. Subjective- and EEG-matrices significantly correlated in specific leads and latencies indicating distributed cortical mechanisms of color and emotional semantic processing and color-emotion semantic interrelation. Conclusion: These data produce new multidimensional psychophysiological model of color-emotion semantic interaction. The Russian Science Foundation (project № 16-18-00066) supported the research.