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According to the National Institute of Neurological Disorders and Stroke, a brain aneurysm (also referred to as a cerebral aneurysm) is a weak spot on an artery in the brain that balloons out and ...
A paranoid reaction may be caused from a decline in brain circulation as a result of high blood pressure or hardening of the arterial walls. [10] Drug-induced paranoia, associated with cannabis and stimulants like amphetamines or methamphetamine, has much in common with schizophrenic paranoia; the relationship has been under investigation since ...
Similar factors have led to criticisms of Jaspers' definition of delusion as being ultimately 'un-understandable'. Critics (such as R. D. Laing ) have argued that this leads to the diagnosis of delusions being based on the subjective understanding of a particular psychiatrist, who may not have access to all the information that might make a ...
Paranoia presents itself in those with dementia when certain areas of the brain are damaged. This can cause delusions, which commonly incites paranoia due to feelings of confusion, anxiety, and ...
You hear stories of brain haemorrhages and people saying it’s the worst headache imaginable – like a hammer hitting you on the head – and your face drops, your arms go weak.
A cold-stimulus headache is thought to be the direct result of the rapid cooling and rewarming of the capillaries in the sinuses leading to periods of vasoconstriction and vasodilation. A similar, but painless, blood vessel response causes the face to appear "flushed" after being outside on a cold day. In both instances, the low temperature ...
Paraphrenia is often associated with a physical change in the brain, such as a tumor, stroke, ventricular enlargement, or neurodegenerative process. [4] Research that reviewed the relationship between organic brain lesions and the development of delusions suggested that "brain lesions which lead to subcortical dysfunction could produce delusions when elaborated by an intact cortex".
Serotonin, being a tryptamine (non-catecholamine) involved in higher brain functions, can cause dangerous hypertension and tachycardia from its effects on the sympathetic nervous system. [23] Symptoms caused by excessive adrenergic signalling can occur alongside those of serotonergic signalling.