. Author manuscript; available in PMC: 2017 Aug 21.

Published in final edited form as: Cerebellum. 2016 Jun;15(3):369–391. doi: 10.1007/s12311-015-0687-3

Table 5.

Neuropsychiatric features of the cerebellar cognitive affective syndrome. Five domains, each with hyper/hypometric manifestations (from [150])

	Positive (exaggerated) symptoms	Negative (diminished) symptoms
Attentional Control	Inattentiveness	Ruminativeness
	Distractibility	Perseveration
	Hyperactivity	Difficulty shifting focus of attention
	Compulsive and ritualistic behaviors	Obsessional thoughts
Emotional control	Impulsiveness, disinhibition	Anergy, anhedonia
	Lability, unpredictability	Sadness, hopelessness
	Incongruous feelings, pathological laughing/crying	Dysphoria
	Anxiety, agitation, panic	Depression
Autism spectrum	Stereotypical behaviors	Avoidant behaviors, tactile defensiveness
Autism spectrum	Self stimulation behaviors	Easy sensory overload
Psychosis spectrum	Illogical thought	Lack of empathy
	Paranoia	Muted affect, emotional blunting
	Hallucinations	Apathy
Social skill set	Anger, aggression	Passivity, immaturity, childishness
	Irritability	Difficulty with social cues and interactions
	Overly territorial	Unawareness of social boundaries
	Oppositional behavior	Overly gullible and trusting