Question

Two-Point Discrimination The two-point discrimination sest assesses the ahility to perceive the number of stimuli ("points") placed on the skin Arcas that have a higher density of touch recepeors are better able to distinguish between multigle stimli than thone with fewer touch recepoors Procedure 2 Testing Two-Point Discrimination 1 Have your partner close his or her eyes 2 Mlace the ends of two woodn applicanor sticks chone togrther ithey should be nearly tooching) on your partner's 3 If your partner c 4 Usc a ruler to measure the distance berween the two wticks in millimeters. This i 5 Repeat this procedure for each of the following locations skin on the anterior forearm. Ask how many points your partner can discriminate-one or two. move the sticks farther apart. Repeat this procedure until your partner is your two-point discrimination can setse only one point, can distinguish two separate points touching the skin a Anterior thigh b Face (around the lips andlor eyes). C Vertebral region. TAAL 15.6 TwoPoint Discrimination Fingertip. 6 1 your data in Table 15.6 Anterior forearm 15 Anterior thigh Face Vertebral region Fingertip 7What resuls did you expect for cach test? Explain. and fnecial Srms UNIT 15 411

Answer 1

6) anterior forearm - 38 mm

anterior thigh - 44 mm

face- 10 mm

vertebral region- 40 mm

finger tip- 3 mm

7) In regions of high sensitivity the distance between two point discrimination will be less and will be greater in regions of less sensitivity. receptive regions of neurons in high sensitive regions are less. so they are able to distinguish two points