Influence of Colour Lightness Differences in Patients With Left Unilateral Spatial Neglect

Shinsuke Sato, Akio Tsubahara, Yoichiro Aoyagi, Takashi Hiraoka, Sumire Hasegawa, Masazumi Mizuma

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We used desk-based tasks to evaluate and clarify the effects of colour lightness differences (Liebmann effect) in patients with left unilateral spatial neglect (USN) following stroke. Participants were 30 adults with USN (16 men and 14 women; mean age = 72.3 years, SD = 8.9 years). They took the ‘Letter Cancellation Test’ of the Japanese version of the Behavioral Inattention Test using two types of paper: black letters with a yellow background (‘black on yellow’) and red letters with a green background (‘red on green’). They also took the Line Bisection Test and their laterality index (LI) was also determined. Paired t-tests were computed comparing the LI by colour displays. LI was higher for ‘black on yellow’ than for ‘red on green’ in patients with mild left USN. However, LI for ‘red on green’ was higher in patients with severe left USN. Colour lightness differences are likely on the left side in patients with relatively mild left USN, but not in those with severe left USN.

Original languageEnglish
Pages (from-to)1-13
Number of pages13
JournalThe Australian Journal of Rehabilitation Counselling
Volume16
Issue number1
DOIs
Publication statusPublished - 01-05-2010

Fingerprint

Color
Stroke

All Science Journal Classification (ASJC) codes

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation

Cite this

Sato, Shinsuke ; Tsubahara, Akio ; Aoyagi, Yoichiro ; Hiraoka, Takashi ; Hasegawa, Sumire ; Mizuma, Masazumi. / Influence of Colour Lightness Differences in Patients With Left Unilateral Spatial Neglect. In: The Australian Journal of Rehabilitation Counselling. 2010 ; Vol. 16, No. 1. pp. 1-13.
@article{14db7362798c4d40b7b02fcfa40b5abe,
title = "Influence of Colour Lightness Differences in Patients With Left Unilateral Spatial Neglect",
abstract = "We used desk-based tasks to evaluate and clarify the effects of colour lightness differences (Liebmann effect) in patients with left unilateral spatial neglect (USN) following stroke. Participants were 30 adults with USN (16 men and 14 women; mean age = 72.3 years, SD = 8.9 years). They took the ‘Letter Cancellation Test’ of the Japanese version of the Behavioral Inattention Test using two types of paper: black letters with a yellow background (‘black on yellow’) and red letters with a green background (‘red on green’). They also took the Line Bisection Test and their laterality index (LI) was also determined. Paired t-tests were computed comparing the LI by colour displays. LI was higher for ‘black on yellow’ than for ‘red on green’ in patients with mild left USN. However, LI for ‘red on green’ was higher in patients with severe left USN. Colour lightness differences are likely on the left side in patients with relatively mild left USN, but not in those with severe left USN.",
author = "Shinsuke Sato and Akio Tsubahara and Yoichiro Aoyagi and Takashi Hiraoka and Sumire Hasegawa and Masazumi Mizuma",
year = "2010",
month = "5",
day = "1",
doi = "10.1375/jrc.16.1.1",
language = "English",
volume = "16",
pages = "1--13",
journal = "Australian Journal of Rehabilitation Counselling",
issn = "1323-8922",
publisher = "Cambridge University Press",
number = "1",

}

Influence of Colour Lightness Differences in Patients With Left Unilateral Spatial Neglect. / Sato, Shinsuke; Tsubahara, Akio; Aoyagi, Yoichiro; Hiraoka, Takashi; Hasegawa, Sumire; Mizuma, Masazumi.

In: The Australian Journal of Rehabilitation Counselling, Vol. 16, No. 1, 01.05.2010, p. 1-13.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Influence of Colour Lightness Differences in Patients With Left Unilateral Spatial Neglect

AU - Sato, Shinsuke

AU - Tsubahara, Akio

AU - Aoyagi, Yoichiro

AU - Hiraoka, Takashi

AU - Hasegawa, Sumire

AU - Mizuma, Masazumi

PY - 2010/5/1

Y1 - 2010/5/1

N2 - We used desk-based tasks to evaluate and clarify the effects of colour lightness differences (Liebmann effect) in patients with left unilateral spatial neglect (USN) following stroke. Participants were 30 adults with USN (16 men and 14 women; mean age = 72.3 years, SD = 8.9 years). They took the ‘Letter Cancellation Test’ of the Japanese version of the Behavioral Inattention Test using two types of paper: black letters with a yellow background (‘black on yellow’) and red letters with a green background (‘red on green’). They also took the Line Bisection Test and their laterality index (LI) was also determined. Paired t-tests were computed comparing the LI by colour displays. LI was higher for ‘black on yellow’ than for ‘red on green’ in patients with mild left USN. However, LI for ‘red on green’ was higher in patients with severe left USN. Colour lightness differences are likely on the left side in patients with relatively mild left USN, but not in those with severe left USN.

AB - We used desk-based tasks to evaluate and clarify the effects of colour lightness differences (Liebmann effect) in patients with left unilateral spatial neglect (USN) following stroke. Participants were 30 adults with USN (16 men and 14 women; mean age = 72.3 years, SD = 8.9 years). They took the ‘Letter Cancellation Test’ of the Japanese version of the Behavioral Inattention Test using two types of paper: black letters with a yellow background (‘black on yellow’) and red letters with a green background (‘red on green’). They also took the Line Bisection Test and their laterality index (LI) was also determined. Paired t-tests were computed comparing the LI by colour displays. LI was higher for ‘black on yellow’ than for ‘red on green’ in patients with mild left USN. However, LI for ‘red on green’ was higher in patients with severe left USN. Colour lightness differences are likely on the left side in patients with relatively mild left USN, but not in those with severe left USN.

UR - http://www.scopus.com/inward/record.url?scp=85007990249&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85007990249&partnerID=8YFLogxK

U2 - 10.1375/jrc.16.1.1

DO - 10.1375/jrc.16.1.1

M3 - Article

AN - SCOPUS:85007990249

VL - 16

SP - 1

EP - 13

JO - Australian Journal of Rehabilitation Counselling

JF - Australian Journal of Rehabilitation Counselling

SN - 1323-8922

IS - 1

ER -