Multisensory behavior and learning

Inclusion Criteria: 

Potential subjects must be between the ages of 18-45 years old and right-handed. Aging has been shown to affect the morphology of sensory and motor nerves, conduction velocities of nerves, and number of motor neurons in the spinal cord; to avoid these confounding factors we will only examine younger-to middle-aged adults.  There are differences in cortical function and corticospinal projections such that testing the right arm of a right-handed individual is not necessarily equivalent to testing the left arm of a left-handed individual.  To eliminate this confound, we will only test right-handed individuals.

Exclusion Criteria: 

Potential subjects will be excluded if they have any past or present history of seizure, stroke, any brain or peripheral nerve disease, severe head trauma, or spinal cord surgery. We will also exclude individuals who have learning or attention conditions such as ADHD. In addition people who either have orthopedic or pain conditions, or a history of seriously injured bones, joints or muscles in either arm, may not participate.  We will also exclude subjects who do not have normal or corrected-to-normal vision, as they may perform the behavioral task differently if they can’t see the reaching targets very well, which would be a confound.