The term pseudoneglect refers to the natural tendency of shifting spatial attention to the left. The concept was introduced/evidenced by experimental findings regarding the line bisection task. In this task, participants are supposed to mark the middle of a horizontal line. On average, their deviations from the actual center of the line tend to be more to the left than to the right. In other visuo-spatial tasks, a similar bias to the left hemifield is apparent. Pseudoneglect shows similarities to impairments in patients suffering from a medial condition called hemispatial neglect. However, the effects of pseudoneglect are marginally small and mainly restricted to experimental settings in scientific labs.
Pseudoneglect has been reported for left-handed as well as right-handed people. The bias to the left side is more pronounced in right-handers.
- Bowers, Dawn; Heilman, Kenneth M. (1980). "Pseudoneglect: Effects of hemispace on a tactile line bisection task". Neuropsychologia. 18 (4–5): 491–498. doi:10.1016/0028-3932(80)90151-7. PMID 6777712.
- Jewell, George; McCourt, Mark E. (2000). "Pseudoneglect: a review and meta-analysis of performance factors in line bisection tasks". Neuropsychologia. 38 (1): 93–110. doi:10.1016/s0028-3932(99)00045-7. PMID 10617294.