This impoverished verbal fluency, alongside the frequent family reports of reduced spontaneous speech and conversation initiation, likely reflects a cognitive adynamia beyond that of simple bradyphrenia
but rather a more significant impairment in the generation of a "fluent sequence of novel thought" [19, 60].
 Some of the associated features are bradymemia (slowness of thoughts), bradyphrenia
and gait abnormalities, such as festination (shuffling gait).
Arciniegas and Anderson mentioned that the decrease in suicide attempts in people with PD may be related to the effects of bradykinesia, akinesia, bradyphrenia
, and apathy.
Severe movement abnormalities and psychomotor deficits can sometimes be observed in patients with HAD, most notably in the form of bradykinesia (slowed movement), hypomimia, action/ postural tremor and hand agility, as well as bradyphrenia
(slowed information processing).
Bradykinesia and bradyphrenia
revisited: Patterns of subclinical deficit in motor speed and cognitive functioning in head-injured patients with good recovery.
Although they usually do not pose a significant problem for patients because they do not hinder day-to-day activities and responsibilities, subtle impairments such as bradyphrenia
(slowness of thinking) and difficulty with finding the right word can also develop in PD.
Anhedonia, avolition affective blunting, alogia, asocialization, and bradyphrenia
were negative symptom clusters considered to be fundamental defects by early investigators.
Hypothesis: The bradyphrenia
of Parkinsonism is a nosological entity.
Saling, "Does old age or Parkinson's disease cause bradyphrenia
?," Journals of Gerontology Series A: Biomedical Sciences and Medical Sciences, vol.
A neurological exam revealed a rigid-akinetic parkinsonism, with marked bradykinesia and bradyphrenia
, mild rigidity, and increased muscular tone.
The term "bradyphrenia
' was introduced in 1922 by Naville  to describe the slowing of cognitive processing associated with parkinsonism, following pandemic encephalitis lethargica.
By the age of 27 he presented to a neurology clinic with dysarthria, poor concentration (mild bradyphrenia
), palilalia, bradykinesia in both hands, and marked axial rigidity.