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Soc Cogn Affect Neurosci. 2018 May 1;13(5):471-482. doi: 10.1093/scan/nsy018.

Distributed affective space represents multiple emotion categories across the human brain.

Author information

1
Department of Neuroscience and Biomedical Engineering, Aalto University, FI-00076 Espoo, Finland.
2
Turku PET Centre, University of Turku, FI-20520 Turku, Finland.
3
Department of Computer Science, Aalto University, FI-00076 Espoo, Finland.
4
Helsinki Institute for Information Technology, Aalto University, FI-00076 Espoo, Finland.
5
Aalto NeuroImaging, Aalto University, FI-00076 Espoo, Finland.
6
Department of Neuroscience, University Medical Center of Geneva, CH-1211 Geneva, Switzerland.
7
Swiss Center for Affective Sciences, Campus Biotech, University of Geneva, CH-1211 Geneva, Switzerland.
8
Department of Psychology, University of Turku, FI-20520 Turku, Finland.

Abstract

The functional organization of human emotion systems as well as their neuroanatomical basis and segregation in the brain remains unresolved. Here, we used pattern classification and hierarchical clustering to characterize the organization of a wide array of emotion categories in the human brain. We induced 14 emotions (6 'basic', e.g. fear and anger; and 8 'non-basic', e.g. shame and gratitude) and a neutral state using guided mental imagery while participants' brain activity was measured with functional magnetic resonance imaging (fMRI). Twelve out of 14 emotions could be reliably classified from the haemodynamic signals. All emotions engaged a multitude of brain areas, primarily in midline cortices including anterior and posterior cingulate gyri and precuneus, in subcortical regions, and in motor regions including cerebellum and premotor cortex. Similarity of subjective emotional experiences was associated with similarity of the corresponding neural activation patterns. We conclude that different basic and non-basic emotions have distinguishable neural bases characterized by specific, distributed activation patterns in widespread cortical and subcortical circuits. Regionally differentiated engagement of these circuits defines the unique neural activity pattern and the corresponding subjective feeling associated with each emotion.

PMID:
29618125
PMCID:
PMC6007366
DOI:
10.1093/scan/nsy018
[Indexed for MEDLINE]
Free PMC Article

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