hallucinations

Megan and Lindsay __Definition According to Wikipedia__ “A **hallucination**, in the broadest sense, is a [|perception] in the absence of a [|stimulus]. In a stricter sense, hallucinations are defined as perceptions in a conscious and awake state in the absence of external stimuli which have qualities of real perception, in that they are vivid, substantial, and located in external objective space."

**Other definitions include:**  “Hallucinations are false or distorted sensory experiences that appear to be real perceptions.” - These sensory experiences are caused usually by the mind, and can be seen, heard, felt, and even smelled or tasted. - Some of the most common types of hallucinations occur are hearing voices when in fact no one had been speaking, seeing objects or colors that aren't actually existant, or having something feel like it's crawling on your skin. - Hallucinations occur because  of physical and/or emotional factors in ones life. Examples include stress, fatigue, and mental illness(like those in Craiglockhart).  __Relation to the book__  Here Sassoon is speaking to Rivers for one of their first meetings. Sassoon is describing a previous hallucination he has had so that Rivers can accurately evaluate him as to whether he has PTSD of shell-shock. Hallucinations supposedly give away what your subconcious is trying to tell you. From this quote you can see that Sassoon has clearly had some bad experiences in the war that are carrying into his everyday life. **
 * ‘No. It happened once during the dat. I’d been to my club for lunch, and when I came out I sat on a bench, and … I suppose I must’ve nodded off.’ He was forcing himself to go on. ‘When I woke up, the pavement was covered in corpses. Old ones, new ones, black, green.’ His mouth twisted. ‘People were treading on their faces,’ (pg. 12).

__Facts according to Wikipedia__ -In   1894 approximately 10% of the population experienced hallucinations -" <span style="font-size: 11pt; font-family: Tahoma, Geneva, sans-serif; background-color: #ffffff; msoasciithemefont: minor-latin; msohansithemefont: minor-latin; msobidifontfamily: 'Times New Roman'; msofareastfontfamily: Calibri; msoansilanguage: EN-US; msofareastthemefont: minor-latin; msobidithemefont: minor-bidi; msofareastlanguage: EN-US; msobidilanguage: AR-SA;"> <span style="font-family: Tahoma, Geneva, sans-serif;">A 1996-1999 survey of over 13,000 people reported a much higher figure, with almost 39% of people reporting hallucinatory experiences, 27% of which were daytime hallucinations, mostly outside the context of illness or drug use" -many different types such as: <span style="font-size: 11pt; font-family: Tahoma, Geneva, sans-serif; msoasciithemefont: minor-latin; msohansithemefont: minor-latin; msobidifontfamily: 'Times New Roman'; msofareastfontfamily: Calibri; msoansilanguage: EN-US; msofareastthemefont: minor-latin; msobidithemefont: minor-bidi; msofareastlanguage: EN-US; msobidilanguage: AR-SA;"><span style="font-family: Tahoma, Geneva, sans-serif;"> <span style="font-family: Tahoma, Geneva, sans-serif;">auditory, olfactory, hypnagogic, peduncular, delirium, etc __Known causes__ -Being drunk or high -dementia -fever -sensory issues (being blind, deaf) -severe illness -psychiatric disorders (PTSD, depression, etc) media type="youtube" key="l-_NneB5fmY" height="344" width="425" <span style="font-size: 90%; color: #ed267f; font-family: Tahoma, Geneva, sans-serif;"> Shown above<span style="font-size: 90%; font-family: Tahoma, Geneva, sans-serif;"> is a link from youtube of a video of a hallucinogen. This seems to hypnotize the mind, giving the viewer a hallucination. Try it out! <span style="color: black; font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: Arial;"> <span style="font-weight: normal; color: black; font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: Arial; mso-bidi-font-weight: bold;"><span style="font-family: Tahoma, Geneva, sans-serif; background-color: #ffffff;">Cited Sources <span style="font-family: Tahoma, Geneva, sans-serif; background-color: #ffffff;">Ballas, Chirstos. "Medical Encyclopedia." __Medline Plus__. 6 Apr. 2009 <www.nlm.nih.gov/medlineplus/ency/article/003258.htm >.

Hallucination - Wikipedia, the free encyclopedia." __Wikipedia, the free encyclopedia__. 6 Apr. 2009 <http://en.wikipedia.org/wiki/Hallucination>.