Complex visual hallucinations. Clinical and neurobiological insights

Complex visual hallucinations. Clinical and neurobiological insights.

Complex visual hallucinations may affect some normal individuals on going to sleep and are also seen in pathological states, often in association with a sleep disturbance. The content of these hallucinations is striking and relatively stereotyped, often involving animals and human figures in bright colours and dramatic settings. Conditions causing these hallucinations include narcolepsy-cataple...

Complex visual hallucinations in the hemianopic field.

From 120 patients with an homonymous hemianopia 16 experienced complex visual hallucinations in the hemianopic field. The brain lesion was located in the occipital lobe, though damage was not limited to this area. Complex hallucinations appeared after a latent period. They were weak in colour and stereotypical in appearance, which allowed differentiation from visual hallucinations of other caus...

Relating Simple and Complex Visual Hallucinations in Charles Bonnet Syndrome

A Case Report on Somatoform Disorder: Colorful Visual Hallucinations

Objectives: To report a case of somatoform disorder (not otherwise specified-NOS). Methods: The patient was an eight-year-old boy who complained of anxiety and seeing visual hallucinations of colorful shapes. He was administered ant migraine and antiepileptic drugs. However, no changes were observed. Psychotherapy was started, as well as fluoxetine (20 mg per day). Initial assessments includ...

Neurobiological insights from bioluminescence imaging

Bioluminescence imaging has already been used for two decades to visualize cells and target genes completely non-invasively. Most frequently, firefly luciferase is applied which efficiently converts the substrate D-Luciferin in an enzymatic reaction that is dependent on ATP, Mg2+ and O2. Commercial imaging equipment is available to capture the emitted photons when luciferase is expressed in cel...