Speech articulation
Only published papers are included; for preprints, see Papers.
Last Updated: May 2024
During language production, after a message has been formulated, the language network sends the message to motor planning and execution brain areas. During spoken production, the relevant areas support articulatory planning and execution.
The brain network that supports speech articulation
This paper provides a general characterization of the speech articulation network, including a demonstration that these areas are sensitive to articulatory complexity and robustly dissociated from brain areas that are sensitive to general task difficulty (i.e., the Multiple Demand network). Moreover, some of these areas show hemispheric biases and some degree of selectivity for speech articulation relative to non-speech oral motor movements.
This paper evaluates a claim from the literature that a small area of the insula is functionally specialized for articulation. We find no support for this claim.
Apraxia of speech in individuals with 16p11.2 deletion syndrome
16p11.2 deletion syndrome is a genetic disorder that is caused by a deletion of a small piece of chromosome 16. The deletion occurs near the middle of the chromosome, at a location designated p11.2. Individuals with this syndrome typically exhibit developmental delays and some degree of intellectual disability. Many also receive a diagnosis of an autism spectrum disorder. In this line of work, we evaluated articulatory abilities in this population and found pronounced deficits in planning and executing speech motor movements.
