%PDF-1.7 1 0 obj << /Type /Catalog /Outlines 2 0 R /Pages 3 0 R >> endobj 2 0 obj << /Type /Outlines /Count 0 >> endobj 3 0 obj << /Type /Pages /Kids [6 0 R 16 0 R ] /Count 2 /Resources << /ProcSet 4 0 R /Font << /F1 8 0 R /F2 9 0 R /F3 10 0 R /F4 11 0 R >> /ExtGState << /GS1 12 0 R /GS2 13 0 R /GS3 14 0 R /GS4 15 0 R >> >> /MediaBox [0.000 0.000 595.280 841.890] >> endobj 4 0 obj [/PDF /Text ] endobj 5 0 obj << /Producer (dompdf 1.0.2 + CPDF) /CreationDate (D:20241121220952+00'00') /ModDate (D:20241121220952+00'00') >> endobj 6 0 obj << /Type /Page /MediaBox [0.000 0.000 595.280 841.890] /Parent 3 0 R /Contents 7 0 R >> endobj 7 0 obj << /Filter /FlateDecode /Length 1540 >> stream xWMs6W1ass4ug8==@$$! $+&? (L{%-x(`W? NB6~ 8>n/+Q=1,sVvҜn!QnV8Tw>%[+A|aȌ8WJ DWyRCإbFZ؃9ynl0THACju ҀUPf|]{0GVHΈ`b#Xv,ڼ=8ۅӂdEH`ڊp &&jdF:ֈ=TqNl1 5nJ}]7X)=RIHc9j65H-[#͘@CnE>QNJIdhak"ѱ:NVj=xLm&,jɾE;yoQފP1$ɍg*Wa?'V>p՜Kqx!}Z$_7lj<)kt s} o]l.)CzEDDo!4MH Mk#%SE+ 7ooQ4_ IʭX,*qI$#ԓ;^[DYڐiXcղ8؃ 92jȰޢJ=Bb0wo{uzBY0A 2%ly^if+~etZK f26&=}>{wo'%ۍeSuϻkk{Rs,I'R8`qz K*B(] VB^ݼ5hA2J $9p Yj|QM>cd)÷w936. K#̉J> endobj 9 0 obj << /Type /Font /Subtype /Type1 /Name /F2 /BaseFont /Times-Bold /Encoding /WinAnsiEncoding >> endobj 10 0 obj << /Type /Font /Subtype /Type1 /Name /F3 /BaseFont /Helvetica /Encoding /WinAnsiEncoding >> endobj 11 0 obj << /Type /Font /Subtype /Type1 /Name /F4 /BaseFont /Helvetica-Bold /Encoding /WinAnsiEncoding >> endobj 12 0 obj << /Type /ExtGState /BM /Normal /CA 0.3 >> endobj 13 0 obj << /Type /ExtGState /BM /Normal /ca 0.3 >> endobj 14 0 obj << /Type /ExtGState /BM /Normal /CA 1 >> endobj 15 0 obj << /Type /ExtGState /BM /Normal /ca 1 >> endobj 16 0 obj << /Type /Page /MediaBox [0.000 0.000 595.280 841.890] /Parent 3 0 R /Contents 17 0 R >> endobj 17 0 obj << /Filter /FlateDecode /Length 458 >> stream xRMo@W$~xͭRR8)"g8VlpO:A` 1qٛl(&Pl!1=:(}ju/[7,Vy..w4')U0D#i& 5(ZT]_V 1 [m7I\Ca?Zy('Fd)_RÇ$Ld.;(Aяcҝͽx endstream endobj xref 0 18 0000000000 65535 f 0000000009 00000 n 0000000074 00000 n 0000000120 00000 n 0000000379 00000 n 0000000408 00000 n 0000000557 00000 n 0000000660 00000 n 0000002273 00000 n 0000002382 00000 n 0000002490 00000 n 0000002598 00000 n 0000002711 00000 n 0000002770 00000 n 0000002829 00000 n 0000002886 00000 n 0000002943 00000 n 0000003048 00000 n trailer << /Size 18 /Root 1 0 R /Info 5 0 R /ID[<60311fc870976b49668bde048c93fe4e><60311fc870976b49668bde048c93fe4e>] >> startxref 3579 %%EOF Planoscope – Vision Mechanic

Planoscope

by

 

Purpose:  To develop fine eye-hand directionality control in a three-dimensional setting.

Materials:  Pegboard or ceiling tile, pegs, various and sundry objects (balls, blocks, glass of water, etc.), flashlight with exposed bulb or penlight, a piece of plexiglass approximately 3 inches by 6 inches (provided).

Procedure: 

1.  Arrange the pegs on the pegboard in the form of a maze, with blind alleys or dead ends.

2.  Place the flashlight between the pegboard and the patient.

3.  The patient is to hold the plexiglass in both hands between the pegboard and the flashlight.

4.  Place the flashlight so that the reflection of the light will be seen in the plexiglass and projected to the pegboard side.  It can be maneuvered, manually, by rotating and tilting the plexiglass.

5.  The object is to control the position of the reflected light and move it through the maze as accurately as possible.  Avoid bumping into the pegs, lowering it below the surface or above the pegs.

6.  As an alternate method, place various size marbles, balls, toy soldiers, blocks, small containers, a glass of water randomly on a table.  Patient is asked to move the reflection around edges on top of, behind, inside of, to the right or left of the various objects.

Aspects to be emphasized:

1.  The home assistant should position himself behind the patient so that the reflected flashlight bulb can be seen in the plexiglass. Since this is a plain mirror reflection, the position of the reflection see by the patient and the assistant will be the same.

2.  Another way to estimate the distance of the reflected light behind the plexiglass is to view the table from above.  The reflected light will be as far behind the reflecting surface as the real light is it front of it.

3.  Observe the accuracy of the movement of the relfection through the maze of from one object to another.  This is a measure of the accuracy of the visual predictions and the manual dexterity, as well as a measure of the relationship between the two.

You May Also Like

Recommended for you