Cognitive Control Network Contributions to Memory-Guided Visual Attention.
Visual attentional capacity is severely limited, but humans excel in familiar visual contexts, in part because long-term memories guide efficient deployment of attention. To investigate the neural substrates that support memory-guided visual attention, we performed a set of functional MRI experiments that contrast long-term, memory-guided visuospatial attention with stimulus-guided visuospatial attention in a change detection task. Whereas the dorsal attention network was activated for both forms of attention, the cognitive control network(CCN) was preferentially activated during memory-guided attention. Three posterior nodes in the CCN, posterior precuneus, posterior callosal sulcus/mid-cingulate, and lateral intraparietal sulcus exhibited the greatest specificity for memory-guided attention. These 3 regions exhibit functional connectivity at rest, and we propose that they form a subnetwork within the broader CCN. Based on the task activation patterns, we conclude that the nodes of this subnetwork are preferentially recruited for long-term memory guidance of visuospatial attention.
Department of Psychological and Brain Sciences.
Maya L
ML
Rosen
Department of Psychological and Brain Sciences.|Center for Memory and Brain.|Graduate Program for Neuroscience, Boston University, Boston, MA 02215, USA.
Chantal E
CE
Stern
Graduate Program for Neuroscience, Boston University, Boston, MA 02215, USA.
Samantha W
SW
Michalka
Department of Psychological and Brain Sciences.
Kathryn J
KJ
Devaney
Department of Psychological and Brain Sciences.|Center for Memory and Brain.|Graduate Program for Neuroscience, Boston University, Boston, MA 02215, USA.
David C
DC
Somers
D000328:Adult; D001288:Attention / Q000502:physiology*; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D003071:Cognition / Q000502:physiology*; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D057567:Memory, Long-Term / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology; D010775:Photic Stimulation; D014796:Visual Perception / Q000502:physiology*; D055815:Young Adult
change detection; functional MRI; functional connectivity; long-term memory; posterior parietal cortex