The effects of brain training on how persons with Parkinson's disease think and feel

INTERVENTION: All participants' data will be collected via Gorilla Software (www.gorilla.sc; Anwyl‐Irvine, Massonnié, Flitton, Kirkham, & Evershed, 2019). Participants will complete a demographics questionnaire and screening measure (Geriatric Depression Scale; Yesavage & Sheikh, 1986) and an adapted version of the Older Adults’ Capacity to Consent to Research (OACCR; Lee, 2010), from which their eligibility will be determined. Participants will complete baseline assessments which will take approximately 45 minutes. After completion of baseline measures (includes an emotion regulation questionnaire, a set of executive functioning measures, and a reappraisal task), participants will be invited to the computerised cognitive training intervention, which entails completing ten online training sessions (limited to a maximum of one session per day) over a period of two weeks. Participants will be randomly allocated by Gorilla software (www.gorilla.sc; Anwyl‐Irvine, Massonnié, Flitton, Kirkham, & Evershed, 2019) to either the experimental group to engage in the working memory CCT intervention using the adaptive Paced Auditory Serial Addition Task or the control group to engage in the active control training intervention using an adapted Visual Search Task. Post‐training assessments at 2‐weeks, 1‐month and 2‐month intervals will be completed post‐intervention and will include the same baseline measures. CONDITION: Cognitive training of executive functioning on emotion regulation in Parkinson’s Disease ; Nervous System Diseases PRIMARY OUTCOME: ; Measured at 2‐week, 1‐month and 2‐month follow up:; 1. Scores on the Emotion Regulation Questionnaire (Gross & John, 2003); measuring general reappraisal ability and commonly employed strategies.; 2. The Positive and Negative Affect Scale (PANAS; Watson, Clark, & Tellegen, 1988); a 20‐item self‐report mood scale, with 10 items measuring positive emotions and 10 items assessing negative emotions.; 3. The Paced Auditory Serial Attention Task (PASAT; Gronwall, 1977); measuring working memory and near‐transfer effects of the intervention.; 4. The Digit Span Task (Wechsler et al., 2008); measuring working memory and far‐transfer effects of the intervention.; 5. The Colour‐Shape Task (Miyake, Emerson, Padilla, & Ahn, 2004); measuring set‐shifting.; 6. The Go/No‐Go task (Rush, Barch, & Braver, 2006); measuring response inhibition.; SECONDARY OUTCOME: There are no secondary outcome measures INCLUSION CRITERIA: 1. Individuals diagnosed with idiopathic Parkinson’s Disease. 2. Approximately aged 45 years to 75 years. 3. Normal or corrected‐to‐normal vision and hearing. 4. Have access to a computer or laptop with a speaker. 5. English Speaker.