Judgment_of_Line_Orientation
Judgment of Line Orientation
Standardized test of visuospatial skills
Judgment of Line Orientation (JLO) is a standardized test of visuospatial skills commonly associated with functioning of the parietal lobe in the right hemisphere.[1] The test measures a person's ability to match the angle and orientation of lines in space.[2] Subjects are asked to match two angled lines to a set of 11 lines that are arranged in a semicircle and separated 18 degrees from each other.[3] The complete test has 30 items, but short forms have also been created. There is normative data available for ages 7-96.[4]
In 1994, Arthur L. Benton developed the test from his study of the effects of a right hemisphere lesion on spatial skills.[5]