Unconscious relational inference recruits the hippocampus


Autoria(s): Reber, Thomas P.; Luechinger, Roger; Boesiger, Peter; Henke, Katharina
Data(s)

02/05/2012

Resumo

Relational inference denotes the capacity to encode, flexibly retrieve, and integrate multiple memories to combine past experiences to update knowledge and improve decision-making in new situations. Although relational inference is thought to depend on the hippocampus and consciousness, we now show in young, healthy men that it may occur outside consciousness but still recruits the hippocampus. In temporally distinct and unique subliminal episodes, we presented word pairs that either overlapped (“winter–red”, “red–computer”) or not. Effects of unconscious relational inference emerged in reaction times recorded during unconscious encoding and in the outcome of decisions made 1 min later at test, when participants judged the semantic relatedness of two supraliminal words. These words were either episodically related through a common word (“winter–computer” related through “red”) or unrelated. Hippocampal activity increased during the unconscious encoding of overlapping versus nonoverlapping word pairs and during the unconscious retrieval of episodically related versus unrelated words. Furthermore, hippocampal activity during unconscious encoding predicted the outcome of decisions made at test. Hence, unconscious inference may influence decision-making in new situations.

Formato

application/pdf

Identificador

http://boris.unibe.ch/48526/1/6138.full.pdf

Reber, Thomas P.; Luechinger, Roger; Boesiger, Peter; Henke, Katharina (2012). Unconscious relational inference recruits the hippocampus. Journal of neuroscience, 32(18), pp. 6138-6148. Society for Neuroscience 10.1523/JNEUROSCI.5639-11.2012 <http://dx.doi.org/10.1523/JNEUROSCI.5639-11.2012>

doi:10.7892/boris.48526

info:doi:10.1523/JNEUROSCI.5639-11.2012

urn:issn:0270-6474

Idioma(s)

eng

Publicador

Society for Neuroscience

Relação

http://boris.unibe.ch/48526/

Direitos

info:eu-repo/semantics/openAccess

Fonte

Reber, Thomas P.; Luechinger, Roger; Boesiger, Peter; Henke, Katharina (2012). Unconscious relational inference recruits the hippocampus. Journal of neuroscience, 32(18), pp. 6138-6148. Society for Neuroscience 10.1523/JNEUROSCI.5639-11.2012 <http://dx.doi.org/10.1523/JNEUROSCI.5639-11.2012>

Palavras-Chave #150 Psychology #610 Medicine & health
Tipo

info:eu-repo/semantics/article

info:eu-repo/semantics/publishedVersion

PeerReviewed