In cognitive psychology, the articulatory rehearsal loop is of the hypothesized low-level assistants to the working memory (Reisberg, 2018). The articulatory rehearsal loop uses subvocalization (covert) speech for creating a record kept in the phonological buffer. Some of these hypothesized functions have underlying empirical evidence from the neuroscientific literature.
Christoffer Rahm, chief psychiatrist at Psychiatry South Stockholm, writes that the concept of the phonological buffer can be found in lateral and anterior areas of the brain in the left hemisphere (Rahm, 2018).
Rahm, C. (2018). Neurovetenskaplig psykiatri. Stockholm, Sverige: Natur & Kultur.
Reisberg, D. (2018). Cognition: Exploring the Science of the Mind. 7th Edition. New York: W. W. Norton & Company.