Inner Speech Speaks Volumes About the Brain
[Source: Science Daily]
Whether you’re reading the paper or thinking through your schedule for the day, chances are that you’re hearing yourself speak even if you’re not saying words out loud. This internal speech — the monologue you “hear” inside your head — is a ubiquitous but largely unexamined phenomenon. A new study looks at a possible brain mechanism that could explain how we hear this inner voice in the absence of actual sound.
In two experiments, researcher Mark Scott of the University of British Columbia found evidence that a brain signal called corollary discharge — a signal that helps us distinguish the sensory experiences we produce ourselves from those produced by external stimuli — plays an important role in our experiences of internal speech.
The findings from the two experiments are published in Psychological Science, a journal of the Association for Psychological Science.
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