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Hallucinations | Common Signs

  • Becomes frightened by sounds that do not exist
  • Becomes frightened by images that do not exist
  • Believes they have talked to or seen a deceased friend or relative
  • Hears voices telling them to do certain things
  • Feels that there is something touching them or that there is something on their skin
  • Has a conversation or talks as if there is someone else in the room
  • Misinterprets or sees everyday objects in a different light (e.g. believes that the spots on the curtain are moving, the rug is floating)
  • Becomes frightened by shadows and/or reflections
 
Hallucinations | General Description

Alzheimer's disease causes changes in the brain which may cause the person you care for to see, hear, taste, smell or feel things that are not really there. The person you care for may misinterpret common objects such as mirrors or curtains, and see things that are not really there. This can be quite frightening for the person you care for, as they may think they are in danger or in harm's way. They also may become confused by shadows, reflections or light distortions and believe that they are seeing something else. It is also common for the person you care for to see friends, relatives or animals, even though they may be deceased or from their past. Many times the person you care for may hear strange sounds or voices that are not actually there as well. While it may appear that they are talking to themselves, the person you care for may believe that they are talking to an old friend or relative. It may seem to the person you care for that there is something touching them or moving on their body, such as an insect or a snake.

Hallucinations are commonly an early sign of dementia with Lewy bodies . In fact, the presence of visual hallucinations represents one of three core criteria for a diagnosis of Lewy body dementia.

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See Also:
About Dementia > Treatments for Dementia > Adverse Drug Reactions
About Dementia > Alzheimer's Disease > Agnosia
Symptom Library > Thinking & Judgment > Comprehension/ Understanding
Symptom Library > Physical Changes > Sensory Input
Symptom Library > Behaviour > Delusions and Paranoia
About Dementia > Types of Dementia > Dementia with Lewy Bodies
About Dementia > Types of Dementia > Delirium
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Last updated August 9, 2017
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