"What we don’t know yet is why they are active," he told Metro Magazine. "One possibility is that the answer will be found in how these language centers are connected to other parts of the brain, such as the motor cortex and areas linked to long-term memory."
We do know, however, that hearing voices is often triggered during prolonged bouts of stress, low self-esteem, or drug use. It may also stem from traumatic events in early life or overwhelming fear or unexpected situations. When they appear, voices can sound corporeal as if someone is talking to you. They may also originate internally, but outside the bounds of one's own control. Plainly different from personal thoughts, explains Dr. Anna Tickle, a clinical psychologist at the University of Nottingham who, along with her partner Dr. Lucy Holt, just completed a review exploring the experience of hearing voices from the hearer's perspective.
"Voices were generally experienced by participants as coming from outside the self but manifested inside the body whereas thoughts were perceived as ‘belonging’ to the self," she said.
According to Tickle and Holt, Western medicine has typically categorized hearing voices as meaningless, nothing more than a sinister symptom of mental illness. But in the fast [sic] decade or so, that's been changing.
"There has been increasing recognition of the importance of treating voices not just as a 'symptom' but as an experience with meaning," Tickle told RCScience. "Although sadly some professionals are yet to catch up."
RealClearScience - We Can Learn from Those Who Hear Voices
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