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. Author manuscript; available in PMC: 2013 May 3.
Published in final edited form as: Psychol Assess. 2011 Aug 22;24(1):249–254. doi: 10.1037/a0025042

Figure 1.

Figure 1

The clinical reaction time apparatus and testing procedure: (a) the apparatus, (b) pre- drop examiner and test subject positions, (c) post-drop examiner and test subject positions. For the purpose of this illustration, neither the subject nor testing apparatus are instrumented with optoelectronic markers. The light-emitting diode can be seen at far right in (a) as the small light colored hemisphere mounted on the circular shaped transparent plastic top cover to the finger spacer, here seen in side-view.