The Effect of Mindfulness on Cognition and Emotion Following Acquired Brain Injury

Inclusion Criteria: * Aged 18 years and over * Medical evidence of ABI with attention or executive functioning difficulties, such as difficulties with planning, inhibition or attention * Time since ABI to be 9 months or greater • ABI severity to be moderate to severe, determined by the Mayo classification system (Malec et al., 2007). This is classification system is frequently used to determine ABI severity and is standard practice to record at the acute stage of care when the individual is admitted to hospital. This means there must be evidence of one or more of the following in medical notes: the individual's lowest Glasgow Coma Scale (GCS) score is less than 13, there is a loss of consciousness of at least 30 minutes immediately following ABI and post traumatic amnesia (PTA) is at least 24 hours in length. If there is no evidence of this in the medical notes, then there must be evidence that the individual has clinically significant difficulties resulting from their ABI to have needed a referral to brain injury services. * There are self-reported or clinician-identified emotional difficulties to adjusting to circumstances post-ABI Exclusion Criteria: * Significant, severe and enduring presence of mental health difficulties or substance misuse that would prevent valid engagement in experimental tasks * Perceptual, language, communication, reading or motor difficulties that would prevent valid engagement in experimental tasks * The presence of developmental or acquired dyslexia affecting the automatic reading of words in the emotional Stroop * Severe cognitive difficulties that would prevent valid engagement in experimental tasks * Presence of pre-existing or comorbid disorders that may affect cognitive functioning (other than ABI) that would prevent valid engagement in experimental tasks