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Title: Locus of control, optimism, and recollections of depression and self-reported cognitive functioning following treatment for colorectal cancer.
Austin Authors: Wilson, Carlene J ;Giles, Kristy;Nettelbeck, Ted;Hutchinson, Amanda
Affiliation: School of Psychology, Social Work and Social Policy, University of South Australia, Adelaide, South Australia, Australia
Olivia Newton-John Cancer Wellness and Research Centre, Austin Health, Heidelberg, Victoria, Australia
School of Psychology and Public Health, La Trobe University, Heidelberg, Victoria, Australia
School of Psychology, University of Adelaide, Adelaide, South Australia, Australia
School of Medicine, Flinders Centre for Innovation in Cancer, Flinders University, Adelaide, South Australia, Australia
Issue Date: Feb-2018
Date: 2017-10-01
Publication information: Psycho-oncology 2018; 27(2): 676-682
Abstract: OBJECTIVE: To investigate the effects of disposition (locus of control, optimism, and depression) on recollections of cognitive functioning following cancer treatment. METHODS: Participants were survivors of colorectal cancer (n = 88) and their spouses (n = 40). Survivors retrospectively rated their cognitive functioning and depression, as experienced following treatment and currently rated their dispositions for optimism and locus of control. Survivors' spouses likewise provided their recollections of survivors' cognitive functioning and depression at time following treatment. RESULTS: Correlations between survivors' and spouses' ratings for cognitive functioning were statistically significant but not for depression. Results supported validity of survivors' longer term retrospective reports. Although internal locus of control correlated positively with retrospectively self-reported cognitive functioning, and negatively with retrospectively self-reported depression, moderated hierarchical multiple regression found independent contribution of internal locus of control was limited to predicting quality of life; and that, among variables tested, depression correlated strongest with cognitive functioning. CONCLUSIONS: Neither internal locus of control nor optimism in colorectal cancer survivors influences correlation between cognition and depression. Health care providers should note individual differences in responses to treatment and be alert to the impact of depression on perceived everyday functioning.
DOI: 10.1002/pon.4567
ORCID: 0000-0002-1883-4690
Journal: Psycho-oncology
PubMed URL: 29047197
Type: Journal Article
Subjects: FACT-Cog
cognitive functioning
Colorectal cancer
locus of control
Appears in Collections:Journal articles

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