Hypomimia

Hypomimia

Hypomimia, or amimia, is a deficit or absence of expression by gesture or mimicry. This is usually most obvious as a lack of facial expressive mobility ("mask-like facies"). This is a feature of frontal-subcortical disease, e.g., basal ganglia disease producing akinetic-rigid or parkinsonian syndromes, and frontal lobe lesions (especially of the nondominant hemisphere).

Cross References

Facial paresis; Fisher’s sign; Parkinsonism