ABSTRACT
Chris Code summarized the strengths and weaknesses of the cognitive approach:
Occasionally people find themselves at a loss with cognitive theories, especially when more than one theory or model can be applied to a single symptom complex (e.g., paraphasia, dyslexia) in a given patient, producing different interpretations and predictions. [. . .] Single case investigations were championed in early cognitive neuropsychology, but they have fallen out of favour with some in recent years, although theory development is constrained by data from single cases and their theory-driven investigation.
