![]() Neither hallucinations nor delusions are intrinsically harmful nonetheless understanding the differences between delusions vs hallucinations can be helpful in diagnosis and treatment as well as in the management of mental health conditions that cause these symptoms. The simplest way to tell the difference between hallucinations and delusions is:Ī hallucination is a distorted view of reality.Ī delusion is a mistaken belief that persists despite evidence to the contrary. The causes, treatment, and results of delusions and hallucinations might differ. While both delusions and hallucinations are indicators of mental diseases that change a person's perspective of reality they are not the same thing. In fact, most people use these phrases interchangeably and have no idea what the distinctions between delusions and hallucinations are. If this happens, seek medical help as soon as possible.When people lose contact with reality, they are frequently described as suffering delusions or hallucinations. Other causes such as low blood sugar and head injury can also cause confusion. Particularly in older people, infections like a chest or bladder infection can make someone become suddenly confused (delirium). You can read more about the emotional effects of stroke. The emotional impact of a stroke can lead to depression, which can change how someone acts. You can read more in our guide to behaviour changes after stroke. They might become less inhibited, or they could lose interest in things they used to enjoy. People can sometimes behave out of character due to a stroke. You can read more about these changes to your perception in our guide to problems with memory and thinking. Spatial neglect: not being aware of things to one side of your body.Not being aware that you’ve been affected by a stroke, such as not realising you can’t use your hand or can’t walk (anosognosia).Not being able to recognise faces (prosopagnosia).Thinking that part of your body does not belong to you, or belongs to someone else (somatoparaphrenia).Problems with identifying things (agnosia). ![]() Some types of changes to perception due to cognitive effects (problems with memory and thinking): To an observer, this could make it seem as if someone is imagining things, but the cause is damage to their cognitive or language skills. Read more in our guide to changes to taste and smell.Ī stroke can affect your ability to recognise things, or find the right names for objects or people.
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