BPK 306 Lecture Notes - Lecture 34: Clustering Coefficient, Prefrontal Cortex, Centrality

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 306
• Professor: Sam Doesburg

Document Summary

Cortical columns are small areas of 6-layer cortex with the same receptive field. Brodmann areas are large areas of cortex with homogenous 6-layer cytoarchitecture. Structurally defined brodmann areas tend to be associated with specific functions. Motor, perceptual and cognitive processes requires selective integration between particular groups of columns located in particular brodmann areas. Not all anatomical areas are directly connected, and strength" of structural connectivity between areas differs. Structural (physical) networks are fairly stable and determine which brain areas can directly exchange information, but not if or how communication is occurring at a given time. Cortical structure -> brodmann areas typically associated with certain functions, within which there are many columns that have more specific receptive fields". Structural connectivity is the pattern of axonal patterns that enables (and constrains) functional connectivity (correlated activity between areas/columns: spontaneous/resting-state connectivity, task-dependent functional connectivity, what are the changes in connectivity when doing a specific task.