It has been proposed that a continuum of specificity exists between episodic and semantic autobiographical memory. Personal semantics have been theorized to situate intermediately on this continuum, with more "experience-near" personal semantics (enPS) closer to the episodic end. We used individual differences in behavior as a model to investigate brain networks associated with the access to episodic autobiographical (EAM) and enPS information, assessing the relation between performance in the EAM and enPS conditions of the Autobiographical Fluency Task (AFT) and intrinsic brain connectivity. Results of an intrinsic connectivity contrast analysis showed that the global connectivity of two clusters in the left and right posterior cingulate cortex (PCC) was predicted by performance in the enPS conditions. Moreover, enPS scores predicted the connectivity strength of the right PCC with the bilateral anterior hippocampus (aHC), anterior middle temporal gyrus (aMTG) and medial orbitofrontal cortex, and the left aMTG and PCC. enPS scores also predicted the connectivity strength of the left PCC with the bilateral HC and MTG. The network highlighted involves parts of the core and of the dorsal medial subsystems of the Default Mode Network, in line with the proposal that enPS represents an intermediate entity between episodic and semantic memory.

Brain connectivity patterns associated with individual differences in the access to experience-near personal semantics: a resting-state fMRI study / Teghil, Alice; Boccia, Maddalena. - In: COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE. - ISSN 1530-7026. - (2024). [10.3758/s13415-023-01149-6]

Brain connectivity patterns associated with individual differences in the access to experience-near personal semantics: a resting-state fMRI study

Teghil, Alice
;
Boccia, Maddalena
2024

Abstract

It has been proposed that a continuum of specificity exists between episodic and semantic autobiographical memory. Personal semantics have been theorized to situate intermediately on this continuum, with more "experience-near" personal semantics (enPS) closer to the episodic end. We used individual differences in behavior as a model to investigate brain networks associated with the access to episodic autobiographical (EAM) and enPS information, assessing the relation between performance in the EAM and enPS conditions of the Autobiographical Fluency Task (AFT) and intrinsic brain connectivity. Results of an intrinsic connectivity contrast analysis showed that the global connectivity of two clusters in the left and right posterior cingulate cortex (PCC) was predicted by performance in the enPS conditions. Moreover, enPS scores predicted the connectivity strength of the right PCC with the bilateral anterior hippocampus (aHC), anterior middle temporal gyrus (aMTG) and medial orbitofrontal cortex, and the left aMTG and PCC. enPS scores also predicted the connectivity strength of the left PCC with the bilateral HC and MTG. The network highlighted involves parts of the core and of the dorsal medial subsystems of the Default Mode Network, in line with the proposal that enPS represents an intermediate entity between episodic and semantic memory.
2024
Autobiographical fluency; Autobiographical memory; Intrinsic functional connectivity
01 Pubblicazione su rivista::01a Articolo in rivista
Brain connectivity patterns associated with individual differences in the access to experience-near personal semantics: a resting-state fMRI study / Teghil, Alice; Boccia, Maddalena. - In: COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE. - ISSN 1530-7026. - (2024). [10.3758/s13415-023-01149-6]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1699795
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