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Jacob Drollinger <[log in to unmask]>wrote: <<When I am out, and there is someone walking towards me, is the time when I have the most difficulty with my gait. I know that it is just nerves, i.e. the anxiety of having someone coming straight at me. But it's gotten to the point where I can not maintain a near normal gait even outside, when a car is coming towards me. This has got to be a psychologic problem; it feels like nothing else. Has anyone else had any similar experiences with their gait and fear of people? When I am alone, I can usually keep a nice steady gait.>> a non-professional opinion that differs somewhat: the possibility that the visual phenomena that abnormal peripheral acuity or sensitivity to moving objects occurs with non-normal balance of neurotransmitters in the optical sensor-neurons or the optical neural networks in the brain could be the cause of the fright-or-flight enzymes and/or neurotransmitters to be released. This epinephrine (? and or ? ) shower of chemical(s) could cause agitation. the above may be relevant to the changes noted when wearing blue glasses which apparently reduce the moement detectors extra sensitivity. The effect not always requiring the relative motion to be from an object in view - the subject being in motion approaching a doorway also produces the relative motion. this may cause freezing - which stops the doorposts from "coming at one". I have read that the motion detectors have a faster than cognitive processes brain response. Which makes sense in regard to the blinking response to small dust particles approaching and also putting a finger close to my eye or face - which may relate to the different response to tapping on the forehead blinking response being different to those of us with PD. best wishes to Jacob and all, (by the way, birth date and diagnosis date do not change - so I prefer to use those in my signature. visit my home page for some medication info if you are interested.) -- ron 1936, dz PD 1984 Ridgecrest, California Ronald F. Vetter <[log in to unmask]> http://www.ridgecrest.ca.us/~rfvetter