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The most common symptoms include: tremors, slowness, stiffness, impaired balance, rigidity of the muscles, and fatigue. As the disease progresses, non-motor symptoms may also appear, such as depression, difficulty swallowing, sexual problems or cognitive changes. [22] Another symptom associated with PD is memory dysfunction.
In 2007, a meta-analysis performed by Williams et al. show that OGM is highly associated with depressive symptoms across many studies. In fact, an overgeneral memory is found not only in individuals with MDD, but also in other affective disorders including postpartum depression, dysphoria, and bipolar disorder. [3]
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.
In some cases, individuals may assume a new identity and be unable to recall personal information from before the onset of symptoms. [2] It is classified as a mental and behavioral disorder [ 3 ] and is variously categorized as a dissociative disorder , [ 1 ] a conversion disorder , [ 3 ] or a somatic symptom disorder .
Prior to 2001, there were a total of four scientific journal articles specifically addressing symptoms of CDS. But then a researcher suggested that sluggish tempo symptoms (such as inconsistent alertness and orientation) were, in fact, adequate for the diagnosis of ADHD-I. Thus, he argued, their exclusion from DSM-IV was inappropriate. [70]
Transient global amnesia (TGA) is a neurological disorder whose key defining characteristic is a temporary but almost total disruption of short-term memory with a range of problems accessing older memories.
Dissociative disorders: People with severe disturbances of their self-identity, memory, and general awareness of themselves and their surroundings may be classified as having these types of disorders, including depersonalization derealization disorder or dissociative identity disorder (which was previously referred to as multiple personality ...
[8] [9] [10] Access to episodic memory can be impeded, [4] while the degree of impairment to short term memory, semantic memory and procedural memory is thought to vary among cases. [5] If other memory processes are affected, they are usually much less severely affected than retrograde autobiographical memory, which is taken as the hallmark of ...