Decoupling of autonomic and cognitive emotional reactions after cerebellar stroke

Jean Marie Annoni, Radek Ptak, Anne Sarah Caldara-Schnetzer, Asaid Khateb, Branka Zei Pollermann

Research output: Contribution to journalArticlepeer-review


Emotional blunting can be found after cerebellar lesions. However, the mechanism of such a modification is not clear. We present a patient with emotional flattening and increased risk taking after left cerebellar infarct who had an impaired autonomic reactivity to negative as compared with positive reinforcement. This impairment was demonstrated by the patient's undifferentiated skin conductance responses to negative and positive reinforcement, whereas controls produced larger skin conductance responses after negative feedback. The cooccurrence of emotional flattening and undifferentiated autonomic reactions to positively and negatively valenced stimuli strengthens the role of the cerebellum in the modulation of the autonomic responses.

Original languageEnglish
Pages (from-to)654-658
Number of pages5
JournalAnnals of Neurology
Issue number5
StatePublished - 1 May 2003
Externally publishedYes

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology


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