Browsing by Author "Kirsten Rowe"

Filter results by typing the first few letters
Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    The relationship between nutrient intake and executive function in adults with posttraumatic stress disorder
    (ELSEVIER SCIENCE BV) Kirsten Rowe; E Brocker; S Suliman; P Blaau; S Seedat; L van den Heuvel
  • Thumbnail Image
    Item
    The adolescent HIV executive function and drumming (AHEAD) study, afeasibility trial of a group drumming intervention amongst adolescents with HIV
    (2023-04-11) Kirsten Rowe; Julia Ruiz Pozuelo; Alecia Nickless; Absolum David Nkosi; Andeline Dos Santos; Kathleen Kahn; Stephen Tollman; Ryan G Wagner; Gaia Scerif; Alan Stein
    AHEAD feasibility trial assessed the feasibility and acceptability of an 8-session group drummingprogramme aiming to improve executive function, depression and anxiety symptoms, andperceived social support in adolescents living with HIV in a rural low-income South Africansetting. Sixty-eight 12- to 19-year-old adolescents participated. They were individuallyrandomised. The intervention arm (n= 34) received weekly hour-long group drumming sessions.Controls (n= 34) received no intervention. Feasibility and acceptability were assessed usingrates of: enrolment; retention; attendance; logistical problems; adolescent-reportedacceptability. Secondary measures included:five Oxford Cognitive Screen-Executive Function(OCS-EF) tasks; two Rapid Assessment of Cognitive and Emotional Regulation (RACER) tasks; theSelf-Reporting Questionnaire-20 (SRQ-20) measuring depression and anxiety symptoms; theMultidimensional Scale of Perceived Social Support (MSPSS). All feasibility criteria were withingreen progression limits. Enrolment, retention, and acceptability were high. There was a positiveeffect on adolescent depressed mood with signal for a working memory effect. There were nosignificant effects on executive function or socio-emotional scales. Qualitativefindingssuggested socio-emotional benefits including: group belonging; decreased internalised stigma;improved mood; decreased anxiety. Group drumming is a feasible and acceptable interventionamongst adolescents living with HIV in rural South Africa. A full-scale trial is recommended.
  • Thumbnail Image
    Item
    Validation of Oxford Cognitive Screen: Executive Function (OCS-EF), a tablet-based executive function assessment tool amongst adolescent females in rural South Africa
    (2021) Kirsten Rowe; Mihaela Duta; Nele Demeyere; Ryan G. Wagner; Audrey Pettifor; Kathleen Kahn; Stephen Tollman; Gaia Scerif; Alan Stein
    Short, reliable, easily administered executive function (EF) assessment tools are needed to measure EF in low- and middle-income countries, particularly in sub-Saharan Africa given the prevalence of human immunodeficiency virus (HIV)-associated neurocognitive disorder. We administered Oxford Cognitive Screen—Executive Function (OCS-EF) to 932 rural South African females (mean age 19.7 years). OCS-EF includes seven tasks: two hot inhibition tasks (a modified Iowa Gambling Task, emotional go/no-go) and five cool EF tasks, two switching tasks (visuospatial rule-finding, geometric trails) and three working memory tasks (digit recall, selection and figure drawing). We performed confirmatory factor analysis testing whether a three-factor, two-factor hot-cool, two-factor working memory and inhibition/switching, or one-factor EF model fitted the data better. The three-factor (switching, inhibition and working memory) model had the best local and global fit (χ2 (11) 24.21, p = 0.012; RMSEA 0.036; CFI 0.920; CD 0.617). We demonstrated the feasibility of OCS-EF administration by trained laypeople, the tripartite structure of EF amongst adolescent females and the factorial validity of OCS-EF in this population and context. OCS-EF tablet-based cognitive assessment tool can be administered by trained laypeople and is a valid tool for assessing cognition at scale amongst adolescents in rural South Africa and similar environments.