Abstract:Understanding the role of anti-gravity behaviour in fine motor control is crucial to achieving a unified theory of motor control. We compare speech from astronauts before and immediately after microgravity exposure to evaluate the role of anti-gravity postures during fine motor skills. Here we show a generalized lowering of vowel spaces after space travel, which suggests a generalized postural shift of the articulators. Biomechanical modelling of the vocal tract in simulated 1g and 0g conditions supports this… Show more
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