Looking for effects of qualia on event-related brain potentials of close others in search for a cause of the similarity of qualia assumed across individuals
| Autor: | Hugo Pantecouteau, Sheila Bouten, J. Bruno Debruille |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Consciousness Brain activity and meditation Cognitive Neuroscience media_common.quotation_subject Qualia Stimulus (physiology) General Biochemistry Genetics and Molecular Biology Behavioral Neuroscience 03 medical and health sciences 0302 clinical medicine Perception Mind-to-mind Qualia P3b-P600 General Pharmacology Toxicology and Pharmaceutics International Affective Picture System media_common Theoretical & Computational Neuroscience P600 General Immunology and Microbiology Really direct brain-to-brain communications Articles General Medicine 16. Peace & justice N400 030104 developmental biology Event-related brain potentials (ERPs) 030217 neurology & neurosurgery Research Article IAPS stimuli Cognitive psychology |
| Zdroj: | F1000Research |
| ISSN: | 2046-1402 |
| Popis: | Qualia, the individual instances of subjective conscious experience, are private events. However, in everyday life, we assume qualia of others and their perceptual worlds, to be similar to ours. One way this similarity is possible is if qualia of others somehow contribute to the production of qualia by our own brain and vice versa. To test this hypothesis, we focused on the mean voltages of event-related potentials (ERPs) in the time-window of the P600 component, whose amplitude correlates positively with conscious awareness. These ERPs were elicited by images of the international affective picture system in 16 pairs of friends, siblings or couples going side by side through hyperscanning without having to interact. Each of the 32 members of these 16 pairs faced one half of the screen and could not see what the other member was presented with on the other half. One stimulus occurred on each half simultaneously. The sameness of these stimulus pairs was manipulated as well as the participants’ belief in that sameness by telling subjects’ pairs that they were going to be presented with the same stimuli in two blocks and with different ones in the two others. ERPs were more positive at all electrode subsets for stimulus pairs that were inconsistent with the belief than for those that were consistent. In the N400 time window, at frontal electrode sites, ERPs were again more positive for inconsistent than for consistent stimuli. As participants had no way to see the stimulus their partner was presented with and thus no way to detect inconsistence, these data might reveal an impact of the qualia of a person on the brain activity of another. Such impact could provide a research avenue when trying to explain the similarity of qualia across individuals. |
| Databáze: | OpenAIRE |
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