You are a researcher investigating the effects of sensory manipulation and anticipatory strategies on postural control. You have recruited a group of healthy adults to participate in your study. During the experiment, you manipulate sensory information to observe its effects on postural control. What sources of sensory information did you manipulate and how? What happened when you made each sense or a combination of senses unreliable? How did you observe postural adjustments?

Interestingly, when your participants were exposed to small, repetitive backward platform movements (i.e., perturbations) you noticed their performance changed over time. What do you think happened? Describe your findings on the timing of muscle activity with respect to your key dependent measure. Relate your findings to a model that describes how postural adjustments are made in response to a perturbation and why they would change over time.

Clearly explain your reasoning and any relevant concepts you use in your discussion.