During this latter period, Jacob faces several threats to his life and experiences grotesque hallucinations.

As the hallucinations become increasingly bizarre, Paul, one of his old Army friends, contacts Jacob to tell him about his hallucinations and is later killed when his car explodes.

At the funeral, his surviving platoon-mates confess to Jacob they too have been seeing horrible hallucinations.

Jacob mentions that many sorts of coca exist — for example, the Tia Juana ; and that asthmatic patients and those afflicted by migraines often experience hallucinations, their strength and frequency varying with the height.

* The film was parodied by the television program, Fridays, in its February 27, 1981, episode, " Altered Statesman ", in which Ronald Reagan ( John Roarke ) experiences hallucinations of previous presidents, including Jimmy Carter, Gerald Ford, Richard Nixon, and John F. Kennedy.

The plan is to use the electroshock to jolt Jack out of his delusions, showing him that the two men could not both be God and so he must be operating under hallucinations.

This is mainly shown by his increasingly erratic behaviour and Jack's hallucinations which appeared to be simply his deranged mind in the beginning where dozens of " Jack Sparrows " appeared to crew the ship in his solitary exile, but later the hallucinations grew more important and there were mainly two " Jacks " constantly arguing about which path to follow: the immortality or the mortality.

Jack's doctor and indeed his entire treatment regimen turn out to be hallucinations, and that Jack, his mind affected by the radiation, had been injecting himself with a poison.

Jack attempts to display vampire like powers by poisoning Ferguson's wife's maid with a substance apparently obtained from Stockton which causes fever and hallucinations.

" Exhausted from tending the wounded, attempts to rescue drowning survivors and sleep-deprived, Jack begins chasing hallucinations of his father in the jungle.

Berkhart used the same weapons as the previous incarnations of Jack O ' Lantern, along with chemical weapons that cause psychedelic and mind-bending hallucinations.

The mental degradation of Jack can lead to hearing hallucinations and visions, which manifest as graphical anomalies and sound distortion, and changes in control sensitivity.

O ' Keeffe said later that they married in order to help soothe the troubles of Stieglitz's daughter Kitty, who at that time was being treated in a sanatorium for depression and hallucinations.

These discussion of Breuer's treatment of Anna O. became " a formative basis of Freudian theory and psychoanalytic practice ; especially the importance of fantasies ( in extreme cases, hallucinations ), hysteria [...], and the concept and method of catharsis which were Breuer's major contributions.

Coleman apparently survives as he can be seen in the Apocalypse Weekend expansion, bandaged up in the hospital ( various evil Gary Coleman clones also serve as recurring enemies during Postal Dude's constant hallucinations ).

This motor impulse is at first employed to give a representation of the satisfying situation in such a way that it becomes possible to experience the satisfaction by means of what might be described as motor hallucinations.

These hallucinations are called " Lilliputian ," which means that objects appear either smaller or larger than they actually are.

Instead — much like in his earlier film, Videodrome — he consistently blurred the lines between what appeared to be reality and what appeared to be hallucinations brought on by the main character's drug addiction.

It was founded circa 1958 – 1959 after the publication of its ( first ) holy book the Principia Discordia, written by Malaclypse the Younger and Omar Khayyam Ravenhurst after a series of shared hallucinations at a bowling alley.

"... serious mental illness characterized by grandiose and persecutory delusions, auditory and visual hallucinations, disordered thought processes, substantial lack of insight, and chronic, incapacitating mood swings.

Alone and far from the safety of the cabin, Cheryl, under hallucinations, assumes she is attacked by trees possessed by the demons,

More severe withdrawal symptoms which occur can include seizures ( some of which can be fatal ), visual and auditory hallucinations, suicidal ideation, extremely severe panic attacks, depersonalization, tremors, delirium, delirium tremens and if not treated as an emergency by a proper medical staff death from a seizure can occur.

People with psychoses are occasionally driven by their delusions or hallucinations to harm themselves or others.

For bicameral humans, when habit did not suffice to handle novel stimuli and stress rose at the moment of decision, neural activity in the " dominant " ( left ) hemisphere was modulated by auditory verbal hallucinations originating in the so-called " silent " ( right ) hemisphere ( particularly the right temporal cortex ), which were heard as the voice of a chieftain or god and immediately obeyed.

Jaynes's theory inspired the investigation of auditory hallucinations by researchers such as psychologist Thomas Posey and clinical psychologist John Hamilton, which ultimately has led to a rethinking of the association of auditory hallucinations and mental illness.

The position of naïve realism — the ' everyday ' impression of physical objects constituting what is perceived — is to some extent contradicted by the occurrence of perceptual illusions and hallucinations and the relativity of perceptual experience as well as certain insights in science.

Indirect realism provides an account of issues such as qualia, dreams, imaginings, hallucinations, illusions, the resolution of binocular rivalry, the resolution of multistable perception, the modelling of motion that allows us to watch TV, the sensations that result from direct brain stimulation, the update of the mental image by saccades of the eyes and the referral of events backwards in time.

Spontaneous activity in the primary sensory areas may produce hallucinations which are misinterpreted by the secondary areas as information from the real world.

Intoxicated individuals may act in an unpredictable fashion, possibly driven by their delusions and hallucinations.

It may be necessary to rule out a delirium, which can be distinguished by visual hallucinations, acute onset and fluctuating level of consciousness, and indicates an underlying medical illness.

Some 10 % of those reported such experiences, and a small number of ' veridical hallucinations ' were reported-that is, hallucinations which appeared to convey information not known to the person hallucinating at the time, which was believed by the authors to be suggestive of telepathy.

Delusions or auditory hallucinations can be mistaken for speech by other personalities.

The DSM-IV-TR criteria for DID have been criticized for failing to capture the clinical complexity of DID, lacking usefulness in diagnosing individuals with DID ( for instance, by focusing on the two least frequent and most subtle symptoms of DID ) producing a high rate of false negatives and an excessive number of DDNOS diagnoses, for excluding possession ( seen as a cross-cultural form of DID ), and for including only two " core " symptoms of DID ( amnesia and self-alteration ) while failing to discuss hallucinations, trance-like states, somatoform, depersonalization and derealization symptoms.

Dreamworlds, shared hallucinations and other alternate realities feature in a number of works by Phillip K. Dick, such as The Three Stigmata of Palmer Eldritch and Ubik.

Sleep paralysis may be accompanied by visual, auditory or tactile hallucinations.

Frequently, auditory hallucinations and their visual counterpart are experienced by the patient together.

Charles Bonnet syndrome is the name given to visual hallucinations experienced by blind patients.

The hallucinations can usually be dispersed by opening or closing the eyelids until the visual images disappear.

Interventions particularly related to these conditions include exploring reality testing, changing delusions and hallucinations, examining factors which precipitate relapse, and managing relapses.

The effects of bufotenin are thought to be similar to those of mild poisoning ; the stimulation, which includes mild hallucinations, lasts for less than an hour.

In the first through sixth edition of Kraepelin's influential psychiatry textbook, there was a section on moral insanity, which meant then a disorder of the emotions or moral sense without apparent delusions or hallucinations, and which Kraepelin defined as ' lack or weakness of those sentiments which counter the ruthless satisfaction of egotism '.

This type of set of experiences possesses a constancy and coherence that is lacking in the set of experiences of which hallucinations, for example, are a part.

prelest, Gr. plani )— the antonym of sobriety — in which a person believes himself or herself to be a saint, has hallucinations in which he or she ' sees ' angels, Christ, etc.

There are conflicting findings about the extent to which certain specific symptoms, notably some kinds of psychosis ( hallucinations or delusions ) that can occur in disorders such as schizophrenia, delusional disorder or mood disorder, are linked to an increased risk of serious violence on average.

Sometimes atypical antipsychotics are used in combination with the previous mentioned medications as well, including olanzapine ( Zyprexa ) which helps treat hallucinations or delusions, Asenapine ( Saphris, Sycrest ), aripiprazole ( Abilify ), risperidone, ziprasidone, and clozapine which is often used for people who do not respond to lithium or anticonvulsants.

) Layouts, Inc., has held a monopoly on this product, as well as on the illegal trade in the drug CAN-D which makes the shared hallucinations possible.

One of the first collaborative efforts of the SPR was its Census of Hallucinations, which researched apparitional experiences and hallucinations in the sane.

Psychosis is given to the more severe forms of psychiatric disorder, during which hallucinations and delusions and impaired insight may occur.

* falling asleep and waking: hypnagogic and hypnopompic hallucinations, which are entirely normal

* bereavement, in which hallucinations of a deceased loved one are common

* some sleep disorders, including hallucinations in narcolepsy ( in which REM sleep intrudes into wakefulness )

Drugs that can induce psychotic symptoms include amphetamine, caffeine ( which can worsen psychotic symptoms in schizophrenia and produce olfactory hallucinations at very high doses in normal volunteers ), cannabis, cocaine, desoxypipradrol, dimethyltryptamine, alcohol ( ethanol ), inhalants, gammahydroxybutyric acid ( and its precursors gammabutyrolactone and 1, 4-butanediol ), ketamine, LSD, mephedrone and methcathinone, mescaline and other phenethylamine hallucinogens, methamphetamine, MDMA ( very rarely, likely due to different phethylamines that are sometimes sold as MDMA, or even piperazine derivatives sold as " extacy "), opiates such as heroin, phencyclidine, piperazine-based drugs, psilocybin, and anabolic steroids at high doses.

The 5-HT2A receptor seems to be important for this, since psychedelic drugs which activate them produce hallucinations.