Memory has three basic processes: 1) Recognition, the process of making traces of experience in the central nervous system. It depends on the level of consciousness and the concentration of attention. Mental fatigue, lack of interest, inattention and confusion can affect the process. Severe deficits in literacy are usually caused by organic causes. ② Retention, or information storage. There are three stages, the initial stage is the formation of memory traces through sensation, which is very unstable; the second stage is short-term preservation; the third stage is long-term preservation. Preservation is a characteristic of neural tissue, and when preservation is impaired, new memories cannot be created and the scope of forgetting increases with each passing day. Severe defects in preservation are seen in organic brain diseases. (iii) Reproduction, the process of recalling and reproducing past experiences. Partial or complete loss of
The ability to reproduce past experiences is called forgetting.
Forgottenness occurs when one or all of the three basic processes of memory are impaired, and is clinically categorized as psychogenic and organic forgetting.
1. Psychogenic amnesia emotional factors can affect both cognition and interfere with the process of recollection. Anxiety. Inattention. Internal conflict or a series of preoccupation when the concept can cause memory impairment. associated with a particular period of past experience or with intense fear. Anger. The loss of memory associated with humiliating situations, mostly seen in dissociative disorders (dissociativedisorders), is a typical manifestation of psychogenic amnesia. The content of the forgetting is often highly selective. Sometimes, psychogenic amnesia is limited to a certain stage of experience, in which there is no memory of the event, known as "bounded amnesia", but this type of amnesia can also be seen in craniocerebral trauma. Psychogenic amnesia is a temporary and treatable disorder.
2. Organic amnesia refers to the amnesia caused by organic brain disease, and often the amnesia of recent events appears earlier. After craniocerebral trauma patients can not recall the experience of a period of time before the injury, known as retrograde amnesia. The duration of amnesia is directly related to the degree of traumatic brain injury. The absence of memory for a period of time after the onset of the disease in patients with organic encephalopathy is called paracrine amnesia. It is common in febrile delirium. Epileptic haze. Intoxication. Traumatic brain injury. Encephalitis and subarachnoid hemorrhage. Amnesia is associated with disorders of consciousness or brain lesions. Chronic diffuse brain lesions such as senile dementia. Paralytic dementia or some subacute lesions involving the hippocampus and other memory circuit structures, can appear amnesia syndrome, with disorientation. Attention loss and forgetfulness of recent events.