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The conditions Capgras delusion and prosopagnosia have also been argued to represent a double dissociation. In the former, a patient is able to recognise a person but does not get the feeling of knowing them. [9] In the latter, a patient is unable to recognise a familiar person but sometimes has a feeling of knowing. [10] Psychology portal
Ischemic hypoxia can also be created by pressure on the brain. Cerebral edema, brain hemorrhages and hydrocephalus exert pressure on brain tissue and impede their absorption of oxygen. Histotoxic hypoxia – Oxygen is present in brain tissue but cannot be metabolized by the brain tissue. Cyanide poisoning is a well-known example.
Brain ischemia has been linked to a variety of diseases or abnormalities. Individuals with sickle cell anemia, compressed blood vessels, ventricular tachycardia, plaque buildup in the arteries, blood clots, extremely low blood pressure as a result of heart attack, and congenital heart defects have a higher predisposition to brain ischemia in comparison to the average population.
Dissociative disorders are characterized by distinct brain differences in the activation of various brain regions including the inferior parietal lobe, prefrontal cortex, and limbic system. [16] Those with dissociative disorders have higher activity levels in the prefrontal lobe and a more inhibited limbic system on average than healthy ...
The most common presentation of cerebrovascular disease is an ischemic stroke or mini-stroke and sometimes a hemorrhagic stroke. [2] Hypertension (high blood pressure) is the most important contributing risk factor for stroke and cerebrovascular diseases as it can change the structure of blood vessels and result in atherosclerosis . [ 5 ]
The ischemic (ischaemic) cascade is a series of biochemical reactions that are initiated in the brain and other aerobic tissues after seconds to minutes of ischemia (inadequate blood supply). [1] This is typically secondary to stroke , injury, or cardiac arrest due to heart attack .
Yellow softening is the third type of cerebral softening. As its name implies, the affected softened areas of the brain have a yellow appearance. This yellow appearance is due to atherosclerotic plaque build-up in interior brain arteries coupled with yellow lymph around the choroid plexus, which occurs in specific instances of brain trauma. [2]
Dissociation is commonly displayed on a continuum. [18] In mild cases, dissociation can be regarded as a coping mechanism or defense mechanism in seeking to master, minimize or tolerate stress – including boredom or conflict. [19] [20] [21] At the non-pathological end of the continuum, dissociation describes common events such as daydreaming.