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[Conscious perception of a stimulus as a somatopsychic process]
Vestnik Rossiiskoi Akademii Meditsinskikh Nauk
|January 1, 1995
Summary
Autonomic nervous system responses to stimuli were studied in healthy females. Subthreshold stimuli caused autonomic shifts, suggesting these changes contribute to conscious perception.
Area of Science:
- Neuroscience
- Psychophysiology
- Autonomic Nervous System Research
Context:
- Investigates autonomic responses in healthy young females.
- Examines reactions to threshold and subthreshold concentrations of cordiamine and tifene odogenes.
- Utilizes measurements including heart rate, electroplethysmograms, pneumograms, and blood coagulation.
Purpose:
- To explore the relationship between autonomic nervous system activity and stimulus perception.
- To determine if autonomic shifts occur at subthreshold concentrations of tested substances.
- To understand the contribution of autonomic changes to conscious stimulus perception.
Summary:
- Autonomic nervous system (ANS) responses, including heart rate and blood coagulation, were assessed in 58 healthy young females exposed to varying concentrations of cordiamine and tifene odogenes.
- Significant autonomic shifts were observed in response to subthreshold concentrations of these substances.
- A correlation was found between an individual's detection threshold for a stimulus and their baseline autonomic activity, as well as the magnitude of their autonomic response.
Impact:
- Suggests that physiological autonomic changes play a role in the conscious perception of stimuli.
- Provides insights into the interplay between the autonomic nervous system and sensory processing.
- Contributes to understanding the neurophysiological underpinnings of stimulus detection and awareness.