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Background Underlying the increased incidence of falls during multitasking is a reduced ability to detect or attend to the sensory information signaling postural instability. Adding noise to a biological system has been shown to enhance the detection and transmission of weakened or sub-threshold cutaneous signals. If stochastic resonance is to become an effective adjunct to rehabilitation, we need...
We present results from a series of studies that investigated how multimodal mismatches in a virtual environment modified postural response organization. Adaptation of motor commands to functional circumstances is driven directly by error signals. Thus, motor relearning should increase when performing in environments containing sensory mismatch. We hypothesized that kinematics of the response would...
We employed a virtual environment to examine the effect of a visual field rotating about the interaural or talo-crural axes on postural behaviors in 11 healthy young adults. Subjects stood quietly in the dark or while the virtual scene rotated in upward pitch on a platform that tilted the ankle into dorsiflexion. Three orders of visual axis rotation were presented. Greater body sway occurred with...
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