Cognitive moderators of outcome following traumatic brain injury: A conceptual model and implications for rehabilitation

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Abstract
This paper presents a conceptual model describing the relationships between quality of life outcomes following traumatic brain injury (TBI), coping patterns, and beliefs regarding self-efficacy to assist health-care professionals in understanding the complexity of social and psychological sequelae of TBI. The mode hypothesizes that long-lasting cognitive, behavioural, emotional psychiatric, and interpersonal after-effects of TBI may create a real life 'learned helplessness' with consequent deficits in coping, and altered locus of control beliefs. As a result, TBI patients are at risk for developing self-limiting belief systems about their effectiveness in altering significant events that may result in over-generalizing the effects that TBI has in their day-to-day lives. Subsequently, a feedback loop may be set up where their beliefs in not being able to influence outcomes are not tested, life chances are further restricted, outcomes are suboptimal, and quality of life is reduced. The clinical and theoretical implications of this model are discussed, and an expanded model with future research directions is suggested.