Yet, because dreams unfold in the absence of an appropriate contemporaneous stimulus sources, they fit the philosophical concept of hallucination.
Aleman & Larøi (2008: 17) argue that because the concept of hallucination is often used in clinical contexts, classifying dreams as hallucinations might ultimately be more misleading than helpful.
Thus, we investigated whether the concept of hallucination is homogenous, both clinically and neurobiologically.
Whereas this contention would not eliminate the concept of hallucination in adult psychiatry, because linguistic descriptions of hallucination still counted as a form of behaviour, it completely transformed child psychiatry.
Once this concept had been appropriated and defined as a developmental problem associated with language, the concept of hallucination, which had been a key concept in all descriptive psychopathology since the 19th century, was written out of developmental psychopathology.
Autism was thereby disassociated from the key concept of descriptive psychopathology – hallucination.
As Rutter's work has already distanced the concept of autism from hallucination and severe adult psychopathology, Wing then took the liberty to redefine all forms of psychopathology in infancy as forms of 'social impairment'.
The most significant development following the introduction of statistical and epidemiological methods in child psychiatry has been the expansion of behavioural, communicative and cognitive categories and the virtual disappearance of the concepts of child hallucination and fantasy.
"High prices bring a lot of hallucinations.
