Judgment of Line Orientation

Judgment of Line Orientation
Test ofParietal lobe

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]

  1. ^ Igor Grant MD; Kenneth Adams PhD (8 February 2009). Neuropsychological Assessment of Neuropsychiatric and Neuromedical Disorders. Oxford University Press. p. 74. ISBN 978-0-19-970280-0.
  2. ^ Maura Mitrushina (10 February 2005). Handbook of Normative Data for Neuropsychological Assessment. Oxford University Press. p. 284. ISBN 978-0-19-516930-0.
  3. ^ Andrew Steptoe; Kenneth Freedland; J. Richard Jennings; Maria M. Llabre; Stephen B Manuck; Elizabeth J. Susman (27 September 2010). Handbook of Behavioral Medicine: Methods and Applications. Springer Science & Business Media. p. 127. ISBN 978-0-387-09488-5.
  4. ^ Martin L. Albert; Janice E. Knoefel (3 March 2011). Clinical Neurology of Aging. Oxford University Press. p. 84. ISBN 978-0-19-536929-8.
  5. ^ Michael D. Franzen (31 October 2000). Reliability and Validity in Neuropsychological Assessment. Springer Science & Business Media. p. 156. ISBN 978-0-306-46344-0.