Shared and differential default-mode related patterns of activity in an autobiographical, a self-referential and an attentional task
Por:
Fuentes-Claramonte, P, Martin-Subero, M, Salgado-Pineda, P, Alonso-Lana, S, Moreno-Alcazar, A, Argila-Plaza, I, Santo-Angles, A, Albajes-Eizagirre, A, Anguera-Camos, M, Capdevila, A, Sarro, S, McKenna, PJ, Pomarol-Clotet, E, Salvador, R
Publicada:
4 ene 2019
Resumen:
The default-mode network (DMN) comprises a set of brain regions that show deactivations during performance of attentionally demanding tasks, but also activation during certain processes including recall of autobiographical memories and processing information about oneself, among others. However, the DMN is not activated in a homogeneous manner during performance of such tasks, so it is not clear to what extent its activation patterns correspond to deactivation patterns seen during attention-demanding tasks. In this fMRI study we compared patterns of activation in response to an autobiographical memory task to those observed in a self/other-reflection task, and compared both to deactivations observed during the n-back working memory task. Autobiographical recall and self-reflection activated several common DMN areas, which were also deactivated below baseline levels by the n-back task. Activation in the medial temporal lobe was seen during autobiographical recall but not the self/other task, and right angular gyrus activity was specifically linked to other-reflection. ROI analysis showed that most, but not all DMN regions were activated above baseline levels during the autobiographical memory and self-reflection tasks. Our results provide evidence for the usefulness of the autobiographical memory task to study DMN activity and support the notion of interacting subsystems within this network.
Filiaciones:
Fuentes-Claramonte, P:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Martin-Subero, M:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Univ Autonoma Barcelona, Barcelona, Spain
Salgado-Pineda, P:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Alonso-Lana, S:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Moreno-Alcazar, A:
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Parc Salut Mar, Ctr Forum Res Unit, Inst Neuropsiquiatria & Addicc, Barcelona, Spain
IMIM Hosp Mar Med Res Inst, Barcelona, Spain
Argila-Plaza, I:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
Santo-Angles, A:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
Albajes-Eizagirre, A:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Anguera-Camos, M:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
Capdevila, A:
HSCSP, Radiol Unit, Barcelona, Spain
CIBER BBN Ctr Invest Biomed Red Bioingn Biomat &, Barcelona, Spain
Sarro, S:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
McKenna, PJ:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Pomarol-Clotet, E:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Salvador, R:
FIDMAG Germanes Hosp Res Fdn, Barcelona, Spain
CIBERSAM Ctr Invest Biomed Red Salud Mental, Barcelona, Spain
Gold, Green Published
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