Common associated movement dysfunctions that comprise parkinsonism are rigidity, bradykinesia, and gait disorder, with limb rigidity forming the most typical manifestation of parkinsonism in CBD. Despite being relatively indistinct, this rigidity can lead to disturbances in gait and correlated movements. Bradykinesia in CBD occurs when there is notable slowing in the completion of certain movements in the limbs. In an associated study, it was determined that, three years following first diagnosis, 71% of persons with CBD demonstrate the presence of bradykinesia. Alien hand syndrome
Alien hand syndrome has been shown to be prevalent in roughly 60% of those people diagnosed with CBD. This disorder involves the failure of an individual to control the movements of their hand, which results from the sensation that the limb is "foreign". The movements of the alien limb are a reaction to external stimuli and do not occur sporadically or without stimulation. The presence of an alien limb has a distinct appearance in CBD, in which the diagnosed individual may have a "tactile mitgehen". This mitgehen (German, meaning "to go with") is relatively specific to CBD, and involves the active following of an experimenters hand by the subjects hand when both hands are in direct contact. Another, rarer form of alien hand syndrome has been noted in CBD, in which an individuals hand displays an avoidance response to external stimuli. Additionally, sensory impairment, revealed through limb numbness or the sensation of prickling, may also concurrently arise with alien hand syndrome, as both symptoms are indicative of cortical dysfunction.
71% had bradykinesia (slow movements), 64% showed apraxia, 43% reported limb dystonia, and although more cognitive 36% had dementia. In another study of 36, over half had a useless/alien arm and 27% had a gait impediment[21]. From this, we can see why CBD is hard to diagnose. Even if it can be distinguished as different from one of the other similar diseases, the varying combinations of symptoms create a difficult path to diagnosis. Motor and associated cortical dysfunctions
Some of the most prevalent symptom types in people exhibiting CBD pertain to identifiable movement disorders and problems with cortical processing. These symptoms are initial indicators of the presence of the disease. Each of the associated movement complications typically appears asymmetrically and the symptoms are not observed uniformly throughout the body. For example, a person exhibiting an alien hand syndrome (explained later) in one hand, will not correspondingly display the same symptom in the other hand. Predominant movement disorders and cortical dysfunctions associated with CBD include:
Parkinsonism
Alien hand syndrome
Apraxia (ideomotor apraxia and limb-kinetic apraxia)
Aphasia

Parkinsonism
The presence of parkinsonism as a clinical symptom of CBD is largely responsible for complications in developing unique diagnostic criteria for the disease. Other such diseases in which parkinsonism forms an integral diagnostic characteristic are Parkinsons disease (PD) and progressive supranuclear palsy (PSP). Parkinsonism in CBD is largely present in an extremity such as the arm, and is always asymmetric. It has been suggested that non-dominant arm is involved more often.