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Patients with Alzheimer's disease and other forms of dementia have been shown to exhibit impairment in executive functioning as well. [2] The effects of DES symptoms on the executive functions and working memory, such as attentiveness, planning and remembering recently learned things, are some of the earliest indicators of Alzheimer's disease ...
Executive functioning is a theoretical construct representing a domain of cognitive processes that regulate, control, and manage other cognitive processes. Executive functioning is not a unitary concept; it is a broad description of the set of processes involved in certain areas of cognitive and behavioural control. [1]
Neurocognitive disorders are diagnosed as mild and major based on the severity of their symptoms. While anxiety disorders, mood disorders, and psychotic disorders can also have an effect on cognitive and memory functions, they are not classified under neurocognitive disorders because loss of cognitive function is not the primary (causal) symptom.
Similar to the NINCDS-ADRDA Alzheimer's Criteria are the DSM-IV-TR criteria published by the American Psychiatric Association. [3] At the same time the advances in functional neuroimaging techniques such as PET or SPECT that have already proven their utility to differentiate Alzheimer's disease from other possible causes, [4] have led to proposals of revision of the NINCDS-ADRDA criteria that ...
Frontal lobe disorder, also frontal lobe syndrome, is an impairment of the frontal lobe of the brain due to disease or frontal lobe injury. [5] The frontal lobe plays a key role in executive functions such as motivation, planning, social behaviour, and speech production.
Initially, progressive speech difficulties with non-fluent aphasia and executive function disorders can be seen. Memory, orientation, and visuospatial functions deteriorate as a result, while echolalia, palilalia, verbal and vocal perseverations develop. Eventually, mutism and progressive dementia set in. [2]
These effects of the dementia and delirium are not joined with the changes of sensory or perception abilities. Memory impairment, judgment, logical function and agitation are also some extremely common symptoms. [12] The more common symptoms of OBS are confusion; impairment of memory, judgment, and intellectual function; and agitation.
Dementia of the Alzheimer's type, with late onset, with delusions: Included only in the DSM-IV. 290.21: Dementia of the Alzheimer's Type, With late onset, with depressed mood: Included only in the DSM-IV. 294.10: Dementia of the Alzheimer's Type, with late onset, without behavioral disturbance: Included only in the DSM-IV-TR. 301.6: Dependent ...