[PHYSIOLOGICAL TREMOR INSTANTANEOUS FREQUENCY DYNAMICS UNDER VARIOUS EMOTIONALY LOADED STIMULATION]

Area of Science:

• Neuroscience
• Psychophysiology
• Human Motor Control

Background:

• Emotional stimuli can influence physiological responses.
• Unconscious psychomotor activity is sensitive to emotional state.
• Investigating tremor dynamics offers insights into neural processing.

Purpose of the Study:

• To examine the relationship between emotional stimulus efficiency and physiological tremor.
• To analyze unconscious psychomotor activity during emotional transitions.
• To explore potential stimulus-dependent lateralization of motor responses.

Main Methods:

• Utilized a randomized presentation of four visual stimuli (name, shuffled name, arithmetic expressions).
• Acquired physiological tremor data using 3-axial digital accelerometers on index fingers.
• Analyzed data to understand psychomotor activity dynamics under emotional stress.

Main Results:

• Identified distinct physiological tremor dynamics in response to varying emotional stimuli.
• Observed stimulus-dependent lateralization of unconscious motor responses.
• Found significant differences in right-hand psychomotor reactions to the subject's own name.

Conclusions:

• Emotional arousal significantly impacts physiological tremor.
• The subject's name elicits a unique, lateralized psychomotor response.
• Tremor analysis can reveal subtle, emotion-driven changes in motor control.