Quick subconscious thinking decides ‘how much louder?’ and which muscles to use
How someone tells you to "keep quiet" affects whether or how you might comply. But what happens when youre asked to "talk louder," or youre talking and the background noise level suddenly goes up?
Purdue University researchers found that how you get louder is a function of how youre told to speak louder and environmental cues. Far more surprising, they discovered that trying to talk louder in response to verbal or other cues involves different sets of muscles and setting internal performance goals – all accomplished subconsciously, involving neural control of the respiratory system. "Its entirely shifted my thinking about how the respiratory system works in speech," lead researcher Jessica E. Huber said. "We never viewed respiration as a flexible system, just whether it was efficient or not. But we found that respiratory control is very context-dependent, and changes in the linguistic or cognitive load of the speech task alters the neural control of the respiratory system," Huber added.
Mayer Resnick | EurekAlert!
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