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Post-traumatic stress disorder (PTSD) [b] is a mental and behavioral disorder [8] that develops from experiencing a traumatic event, such as sexual assault, domestic violence, child abuse, warfare and its associated traumas, natural disaster, traffic collision, or other threats on a person's life or well-being.
When people experience physical trauma, such as a head injury in a car accident, it can result in effects on their memory. The most common form of memory disturbance in cases of severe injuries or perceived physical distress due to a traumatic event is post-traumatic stress disorder, [3] discussed in depth later in the article.
Hallucinogen persisting perception disorder (HPPD) is a non-psychotic disorder in which a person experiences apparent lasting or persistent visual hallucinations or perceptual distortions after using drugs, [1] including but not limited to psychedelics, dissociatives, entactogens, tetrahydrocannabinol (THC), and SSRIs.
A hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. [6] They are distinguishable from several related phenomena, such as dreaming (), which does not involve wakefulness; pseudohallucination, which does not mimic real perception, and is accurately perceived as unreal; illusion, which involves distorted or misinterpreted real ...
In 2021, according to the Centers for Disease Control and Prevention, 48,000 people died by suicide in the United States, 12.3 million adults considered suicide, 3.5 million adults made a plan for ...
The vividness of mental imagery has a key role in the development and continuation of intrusive memories, so for those with PTSD, having hyperphantasia is a substantial risk factor. [18] Both schizophrenia and Parkinson's disease also may be aggravated by hyperphantasia, as high levels of vivid imagery predict the severity of visual ...