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- Glossary
Visual agnosia
Agnosia can be translated as "not recognizing." It refers to deficits in visual perception without blindness. The term was coined by Sigmund Freud. Examples of visual agnosia include prosopagnosia (face agnosia) and object agnosia.
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- Glossary
Agnosia
The term agnosia comes from Latin and means "not knowing." It is a disorder of recognition caused by damage or dysfunction of the brain, without deficits in sensory perception. Agnosia is usually very specific, such as prosopagnosia, the inability to recognize a person by their face.
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- Diseases
- Alzheimer's disease
Alzheimer's – a Disease makes History
After more than 100 years, Alzheimer's disease is still incurable. Possible causes are emerging.
20.10.2025
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- Diseases
- Alzheimer's disease
Alzheimer's from the Inside
How do people live with Alzheimer's disease? A conversation with someone affected by the condition.
20.10.2025
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- Diseases
- Alzheimer's disease
“And now he has Alzheimer's...” – A Guide for Relatives
Alzheimer's diagnosis: Find out what to expect and don't forget about yourself.
11.11.2025
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- Diseases
- Alzheimer's disease
“It's nerve-wracking”
Care at home or in a nursing home? For some dementia patients, shared accommodation can also be an alternative.
20.09.2013
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- Glossary
Alzheimer's disease
Alzheimer's disease is a progressive neurodegenerative disorder characterized by cortical atrophy, nerve cell loss, synapse loss, and deposits of amyloid plaques and neurofibrillary tangles, leading to dementia and loss of function. Early symptoms include memory problems, speech disorders, executive deficits, depressive moods, and subtle personality changes. As the disease progresses, global cognitive impairment, aphasia, agnosia, apraxia, and behavioral abnormalities such as apathy, restlessness, and sleep disorders occur. The disease was first described in 1907 by Alois Alzheimer.
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- Basics
- Anatomy
The Insular Lobe
Deeply hidden in the temporal lobe lies the insular cortex: ancient, versatile, and full of surprises.
08.07.2025
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- Diseases
- Alzheimer's disease
Dementia worry: The Bogeyman of old Age
The fear of developing dementia oneself is widespread.
11.11.2025
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- News from the Institutes
Structure of clusterin: a key protein against neurodegenerative diseases
Crystallographic three-dimensional structure of human clusterin determined for the first time
08.09.2025
