TITLE:
Head Position of Patients with Right Hemisphere Damage during a Visual Search Task in a Large Field
AUTHORS:
Ken Nakatani, Shusuke Takahashi, Daisuke Kimura, Masako Notoya, Nobuyuki Sunahara, Takashi Fujita, Minoru Toyama, Shinya Fukunaga, Naoe Mori, Kiyoe Sakai, Shinya Fuwa
KEYWORDS:
Head Position, Neck Rotation Angle, Unilateral Spatial Neglect, Visual Exploration
JOURNAL NAME:
World Journal of Neuroscience,
Vol.8 No.2,
May
11,
2018
ABSTRACT: Spatial neglect syndrome with cerebral lesions is characterized by the ina-bility to orient, report, or respond to relevant visual stimuli contralateral to the lesions. In this study, we investigated the pattern of horizontal visual search in a large space; this search was performed by patients with right hemisphere damage caused by cerebrovascular disease. The neck rotation angle and search time in each increment were continuously recorded during the task, and quantitative data of the measurements were collected. Head position during the visual search task in a large space (%) was then calculated. We set angular bands in increments of 5 degrees from the midline on the left and right sides, and calculated the total search time in each angular band. In patients with unilateral spatial neglect (USN), the search time in the angular band of 5 - 9 on the right side was significantly longer (with USN 16.7%, without USN 4.5%, t = 2.52, df = 16, p