Study Reveals That Brain Relies On Sight to Identify a Voice


eMediNexus    08 January 2023

According to a study published in the Journal of Neurophysiology, voice and face recognition are more intimately associated with feedback from the common brain centers. In this neuroscience study, participants were asked to identify famous US presidents based on their voices. The researchers revealed that human brains use the same center to recognize someone’s voice and face.


They explained that the visual cortex is the part of the brain that typically processes faces. However, during the project, they saw electrical activity in the same region in response to famous people’s voices, thereby highlighting the deeper link between the two systems, which are the visual and auditory systems.


In the study, five epilepsy patients were enrolled and were temporarily implanted with electrodes measuring brain activity to determine the source of their seizures. They were either shown the photographs of three former US Presidents, namely, Mr. Bill Clinton, Mr. George Bush, and Mr. Barack Obama or played short recordings of their voices. The findings of the study showed that electrical activity from the region of the brain responsible for processing visual clues, called the fusiform gyri, became active while hearing familiar voices. However, the response was slightly delayed and had a lower magnitude. 


(Source: https://www.sciencedaily.com/releases/2023/01/230103133736.htm )

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