The functional dissociation of posterior parietal regions during multimodal memory formation

TY - JOUR

T1 - The functional dissociation of posterior parietal regions during multimodal memory formation

AU - Jablonowski, Julia

AU - Rose, Michael

N1 - © 2022 The Authors. Human Brain Mapping published by Wiley Periodicals LLC.

PY - 2022/8/1

Y1 - 2022/8/1

N2 - The incidental acquisition of multimodal associations is a key memory function for everyday life. While the posterior parietal cortex has been frequently shown to be involved for these memory functions, ventral and dorsal regions revealed differences in their functional recruitment and the precise difference in multimodal memory processing with respect to the associative process has not been differentiated. Using an incidental multimodal learning task, we isolated the associative process during multimodal learning and recollection. The result of the present functional magnetic resonance imaging (fMRI) study demonstrated that during both learning and recollection a clear functional differentiation between ventral and dorsal posterior parietal regions was found and can be related directly to the associative process. The recruitment of a ventral region, the angular gyrus, was specific for learning and recollection of multimodal associations. In contrast, a dorsal region, the superior parietal lobule, could be attributed to memory guided attentional processing. Independent of the memory stage, we assumed a general role for the angular gyrus in the generation of associative representations and updating of fixed association, episodic memory.

AB - The incidental acquisition of multimodal associations is a key memory function for everyday life. While the posterior parietal cortex has been frequently shown to be involved for these memory functions, ventral and dorsal regions revealed differences in their functional recruitment and the precise difference in multimodal memory processing with respect to the associative process has not been differentiated. Using an incidental multimodal learning task, we isolated the associative process during multimodal learning and recollection. The result of the present functional magnetic resonance imaging (fMRI) study demonstrated that during both learning and recollection a clear functional differentiation between ventral and dorsal posterior parietal regions was found and can be related directly to the associative process. The recruitment of a ventral region, the angular gyrus, was specific for learning and recollection of multimodal associations. In contrast, a dorsal region, the superior parietal lobule, could be attributed to memory guided attentional processing. Independent of the memory stage, we assumed a general role for the angular gyrus in the generation of associative representations and updating of fixed association, episodic memory.

KW - Attention

KW - Brain Mapping

KW - Humans

KW - Magnetic Resonance Imaging

KW - Memory, Episodic

KW - Mental Recall

KW - Parietal Lobe/diagnostic imaging

U2 - 10.1002/hbm.25861

DO - 10.1002/hbm.25861

M3 - SCORING: Journal article

C2 - 35397137

VL - 43

SP - 3469

EP - 3485

JO - HUM BRAIN MAPP

JF - HUM BRAIN MAPP

SN - 1065-9471

IS - 11

ER -