Affordable Access

Publisher Website

Is Broca's Area Part of a Basal Ganglia Thalamocortical Circuit?

Authors
Journal
Cortex
0010-9452
Publisher
Elsevier
Publication Date
Volume
42
Issue
4
Identifiers
DOI: 10.1016/s0010-9452(08)70382-4
Keywords
  • Broca'S Area
  • Basal Ganglia
  • Ba 45
  • Ba 44
  • Language
  • Lexicon
  • Grammar
  • Syntax
  • Morphology
  • Phonology
  • Declarative Memory
  • Procedural Memory

Abstract

Abstract The cortex constituting Broca's area does not exist in isolation. Rather, like other cortical regions, Broca's area is connected to other brain structures, which likely play closely related functional roles. This paper focuses on the basal ganglia, a set of subcortical structures that project through topographically organized “channels” via the thalamus to different frontal regions. It is hypothesized that the basal ganglia project to Broca's area. This circuitry is further posited to encompass at least two channels. One channel can be characterized as subserving procedural memory, while the other underlies the retrieval of knowledge from declarative memory. These hypotheses are supported by both anatomical and functional evidence. Implications and issues for further investigation are discussed.

There are no comments yet on this publication. Be the first to share your thoughts.