When discussing language in the brain, we often refer to the language centers being left lateralized. Typically when discussing this, we assume that the language production areas (Broca’s area) is located in the prefrontal cortex. However, there’s also a similar sister region in the right hemisphere(pars opucalarous and pars triangularis). Broca’s Area helps us produce words but what does this areas(right hemisphere) sister region do? (Hint: it is not language comprehension)
The sister region of Broca's area in the right hemisphere is known as the right hemisphere homolog. While Broca's area in the left hemisphere is primarily involved in language production, the right hemisphere homolog does not have the same function. Instead, it is involved in various non-linguistic functions.
One of the main functions of the right hemisphere homolog is the processing and interpretation of prosody, which refers to the rhythm, intonation, stress, and tone of speech. It helps us understand the emotional and pragmatic aspects of language by analyzing the meaningful variations in pitch, volume, and timing.
Additionally, the right hemisphere homolog is involved in some aspects of spatial and visuospatial processing. This includes the comprehension and production of certain facial expressions and gestures, as well as the perception of spatial relationships between objects.
It's worth noting that the exact functions and contributions of the right hemisphere homolog are still being researched and understood. The brain is a complex and intricate organ, and our understanding of its functions is continually evolving.