Introduction
….existe-t-il une différence entre les automatismes ou hallucinations visuelles accompagnant les syndromes neurologiques…..et les automatismes ou hallucinations visuelles qu’on rencontre dans les psychoses hallucinatoires chroniques? Nous sommes fondés à répondre qu’il n’en existe aucune. Les unes comme les autres peuvent avoir les mêmes caractères et apparaissent de façon semblable parce que les unes comme les autres sont d’origine strictement mécanique [3]. (…is there a difference between automatisms or visual hallucinations accompanying neurological syndromes…and automatisms or visual hallucinations encountered in chronic hallucinatory psychosis? We are led to reply that there is none. One like the other can have the same features and appear in a similar way because one like the other is of strictly mechanical origin).
Methods
Parkinson’s disease
Methodological considerations
Structural imaging findings
Dementia with Lewy bodies
Methodological considerations
Structural imaging findings
Alzheimer’s disease
Methodological issues
Structural imaging findings
Schizophrenia
Methodological issues
Structural imaging findings
Charles Bonnet syndrome
Methodological issues
Summary of imaging findings
Brain region | Clinical condition | |||
---|---|---|---|---|
Schizophrenia | Alzheimer’s disease | Dementia with Lewy bodies and PCA | Parkinson’s disease and Parkinson’s disease dementia | |
Occipital lobe
| ||||
Primary visual cortex | ||||
Secondary visual cortex | Atrophy [7]a
| Atrophy [32] | ||
Gross occipital lobe | Atrophy [37] | |||
Parietal lobe
| ||||
Superior Lobule | Reduced Gyri [43] | Atrophy [32] | Atrophy [17] | |
Inferior Lobule | Atrophy [7]a
| Atrophy [38] | ||
Temporal lobe
| ||||
Hippocampus | Atrophy [31]a
| |||
CA1 | Hypertrophy [42] | |||
Subiculum | Hypertrophy [42] | |||
Head | Atrophy [18] | |||
Middle fusiform gyri | ||||
Frontal lobe
| ||||
Pre-central cortex | Atrophy [20] | |||
Dorsolateral prefrontal cortex | Atrophy [20] | |||
Frontal pole | ||||
Middle Cingulate cortex | Atrophy [23] | |||
Subcortical structures
| ||||
Thalamus | Atrophy [30] | Atrophy [19] | ||
Basal ganglia | Atrophy [30] |