Show simple item record

dc.rights.licensehttps://creativecommons.org/licenses/by/4.0/es_AR
dc.contributor.authorCouto, Blases_AR
dc.date.accessioned2018-08-05T19:26:00Z
dc.date.available2018-08-05T19:26:00Z
dc.date.issued2015-05-01
dc.identifierdoi: 10.3389/fpsyg.2015.00503es_AR
dc.identifier.urihttps://doi.org/10.3389/fpsyg.2015.00503es_AR
dc.identifier.urihttps://repositorio.utdt.edu/handle/20.500.13098/11074
dc.description.abstractInteroception is the moment-to-moment sensing of the physiological condition of the body. The multimodal sources of interoception can be classified into two different streams of afferents: an internal pathway of signals arising from core structures (i.e., heart, blood vessels, and bronchi) and an external pathway of body-mapped sensations (i.e., chemosensation and pain) arising from peripersonal space. This study examines differential processing along these streams within the insular cortex (IC) and their subcortical tracts connecting frontotemporal networks. Two rare patients presenting focal lesions of the IC (insular lesion, IL) or its subcortical tracts (subcortical lesion, SL) were tested. Internally generated interoceptive streams were assessed through a heartbeat detection (HBD) task, while those externally triggered were tapped via taste, smell, and pain recognition tasks. A differential pattern was observed. The IC patient showed impaired internal signal processing while the SL patient exhibited external perception deficits. Such selective deficits remained even when comparing each patient with a group of healthy controls and a group of brain-damaged patients. These outcomes suggest the existence of distinguishable interoceptive streams. Results are discussed in relation with neuroanatomical substrates, involving a fronto-insulo-temporal network for interoceptive and cognitive contextual integration.es_AR
dc.format.extent17 p.es_AR
dc.format.mediumapplication/pdfes_AR
dc.languageenges_AR
dc.relation.ispartofFrontiers in Psychology. 6:503, (may. 2015). ISSN: 1664-042Xes_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.subjectLesiónes_AR
dc.subjectNeuropsicologíaes_AR
dc.subjectSensibilización ambientales_AR
dc.subjectPercepción de distanciaes_AR
dc.titleDisentangling interoception : insights from focal strokes affecting the perception of external and internal milieuses_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.subject.keywordInteroceptiones_AR
dc.subject.keywordInteroceptive awarenesses_AR
dc.subject.keywordPeripersonal spacees_AR
dc.subject.keywordLesiones_AR
dc.subject.keywordStrokees_AR
dc.subject.keywordInteroceptive sensitivityes_AR
dc.subject.keywordExteroceptiones_AR
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_AR
dc.description.filiationFil: Couto, Blas. Laboratory of Experimental Psychology and Neuroscience, Institute of Cognitive Neurology, Favaloro University, Buenos Aires, Argentina. UDP-INECO Foundation Core on Neuroscience, Diego Portales University, Santiago, Chile. National Scientific and Technical Research Council, Buenos Aires, Argentinaes_AR


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record