In a recent literature review my co-authors and I compared the symptoms and causes of schizophrenia spectrum disorders and dissociative disorders. The results show the limitations of categorical models of psychopathology (e.g. DSM-5) compared to models that view symptoms as extremes of normal behavior, and models emphasizing that symptoms can cause other symptoms.
Sluggish Cognitive Tempo (SCT) is currently one of the emerging themes in research on attention-deficit/hyperactivity disorder (ADHD). Indeed SCT is considered to be the new “real attention disorder”. The question is whether there is enough evidence for the establishment of a new disorder.