Bodily sensations give rise to conscious feelings

August 29, 2018, University of Turku
Map of subjective feelings. The closer two feelings are to each other in the map, the more similar they feel. Credit: University of Turku

Humans constantly experience an ever-changing stream of subjective feelings that is only interrupted during sleep and deep unconsciousness. Finnish researches show how the subjective feelings map into five major categories: positive emotions, negative emotions, cognitive functions, somatic states, and illnesses. All these feelings were imbued with strong bodily sensations.

"These results show that conscious feelings stem from bodily feedback. Although consciousness emerges due to brain function and we experience our consciousness to be "housed" in the brain, bodily feedback contributes significantly to a wide variety of ," says Associate Professor Lauri Nummenmaa from Turku PET Centre.

According to the researchers, emotions vividly colour all our feelings as pleasant or unpleasant. It is possible that during evolution, consciousness has originally emerged to inform the organisms and others around about tissue damage and well-being. This development may have paved for the emergence of language, thinking and reasoning.

"Subjective well-being is an important determinant of our prosperity, and pain and are intimately linked with multiple somatic and psychological illnesses. Our findings help to understand how illnesses and bodily states in general influence our subjective well-being. Importantly, they also demonstrate the strong embodiment of cognitive and states," says Nummenmaa.

The study was conducted in the form of an online questionnaire in which more than 1,000 people participated. The participants first evaluated a total of 100 feeling states in terms of how much they are experienced in the body and mind, and how emotional and controllable they are. Next, they also evaluated how similar the feelings are with respect to each other, and whereabouts in the body they are felt.

Bodily maps of feelings. All feelings are associated with discernible bodily "fingerprints." Credit: University of Turku
Credit: University of Turku

Explore further: Hunger can lead to anger, but it's more complicated than a drop in blood sugar, study says

More information: Lauri Nummenmaa et al. Maps of subjective feelings, Proceedings of the National Academy of Sciences (2018). DOI: 10.1073/pnas.1807390115 , http://www.pnas.org/content/early/2018/08/27/1807390115

L. Nummenmaa et al. Bodily maps of emotions, Proceedings of the National Academy of Sciences (2013). DOI: 10.1073/pnas.1321664111

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