Sökning: onr:"swepub:oai:DiVA.org:umu-187741" >
A reduced level of ...
A reduced level of consciousness affects non-conscious processes
-
- Fontan, Aurelie (författare)
- Umeå universitet,Institutionen för integrativ medicinsk biologi (IMB),Umeå centrum för funktionell hjärnavbildning (UFBI)
-
- Lindgren, Lenita (författare)
- Umeå universitet,Institutionen för omvårdnad
-
- Pedale, Tiziana (författare)
- Umeå universitet,Institutionen för integrativ medicinsk biologi (IMB),Umeå centrum för funktionell hjärnavbildning (UFBI)
-
visa fler...
-
- Brorsson, Camilla (författare)
- Umeå universitet,Anestesiologi och intensivvård
-
- Bergström, F. (författare)
- Faculty of Psychology and Educational Sciences, University of Coimbra, Portugal
-
- Eriksson, Johan (författare)
- Umeå universitet,Institutionen för integrativ medicinsk biologi (IMB),Umeå centrum för funktionell hjärnavbildning (UFBI)
-
visa färre...
-
(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
-
Ingår i: NeuroImage. - : Elsevier. - 1053-8119 .- 1095-9572. ; 244
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://umu.diva-por... (primary) (Raw object)
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Being conscious is a profound aspect of human existence, and understanding its function and its inception is considered one of the truly grand scientific challenges. However, the nature of consciousness remains enigmatic, to a large part because “being conscious” can refer to both the content (phenomenology) and the level (arousal) of consciousness, and how these different aspects are related remains unclear. To empirically assess the relation between level and content of consciousness, we manipulated these two aspects by presenting stimuli consciously or non-consciously and by using Propofol sedation, while brain activity was measured using fMRI. We observed that sedation affected both conscious and non-conscious processes but at different hierarchical levels; while conscious processing was altered in higher-order regions (the intraparietal sulcus) and spared sensory areas, the opposite effect was observed for non-conscious processing. The observation that Propofol affected non-conscious processing calls for a reconsideration of what kind of information one can gain on “consciousness” from recording neural responses to sedation without considering both (content) conscious and (content) non-conscious processing.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Nyckelord
- Brain activity
- Consciousness
- fMRI
- Sedation
- Unconscious
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas