Cerebellar Structures and the Programming of Movement Sequences
Two patients with unilateral damage to the medial and lateral cerebellum were examined to determine whether local structures in the cerebellum are used to execute programmed movement sequences. Both patients performed a sequential tapping task which required the execution of either a single keystrok...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1990-01-01
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| Series: | Behavioural Neurology |
| Online Access: | http://dx.doi.org/10.3233/BEN-1990-3203 |
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| _version_ | 1832555560460877824 |
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| author | Albrecht Werner Inhoff Robert Rafal |
| author_facet | Albrecht Werner Inhoff Robert Rafal |
| author_sort | Albrecht Werner Inhoff |
| collection | DOAJ |
| description | Two patients with unilateral damage to the medial and lateral cerebellum were examined to determine whether local structures in the cerebellum are used to execute programmed movement sequences. Both patients performed a sequential tapping task which required the execution of either a single keystroke or of a sequence of three keystrokes. Movements executed with the contralateral hand showed increases in response onset times as the movement sequence increased from one to three response elements (sequence length effect). Furthermore, noninitial response elements were executed considerably faster than sequence initial responses (position effect). Movements executed with the ipsilateral hand showed a different pattern of results. Damage to medial cerebellar structure had no qualifying effect but damage to the lateral cerebellar structure eliminated effects of sequence length and of response position. The results suggest that the lateral cerebellum is implicated in the execution of programmed manual movement sequences. |
| format | Article |
| id | doaj-art-bb0b3ae3d5b14654b3cc1ad21bb65e85 |
| institution | Kabale University |
| issn | 0953-4180 1875-8584 |
| language | English |
| publishDate | 1990-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Behavioural Neurology |
| spelling | doaj-art-bb0b3ae3d5b14654b3cc1ad21bb65e852025-02-03T05:47:53ZengWileyBehavioural Neurology0953-41801875-85841990-01-0132879710.3233/BEN-1990-3203Cerebellar Structures and the Programming of Movement SequencesAlbrecht Werner Inhoff0Robert Rafal1State University of New York at Binghamton, USAUniversity of California, Davis and Martinez VA Medical Center, USATwo patients with unilateral damage to the medial and lateral cerebellum were examined to determine whether local structures in the cerebellum are used to execute programmed movement sequences. Both patients performed a sequential tapping task which required the execution of either a single keystroke or of a sequence of three keystrokes. Movements executed with the contralateral hand showed increases in response onset times as the movement sequence increased from one to three response elements (sequence length effect). Furthermore, noninitial response elements were executed considerably faster than sequence initial responses (position effect). Movements executed with the ipsilateral hand showed a different pattern of results. Damage to medial cerebellar structure had no qualifying effect but damage to the lateral cerebellar structure eliminated effects of sequence length and of response position. The results suggest that the lateral cerebellum is implicated in the execution of programmed manual movement sequences.http://dx.doi.org/10.3233/BEN-1990-3203 |
| spellingShingle | Albrecht Werner Inhoff Robert Rafal Cerebellar Structures and the Programming of Movement Sequences Behavioural Neurology |
| title | Cerebellar Structures and the Programming of Movement Sequences |
| title_full | Cerebellar Structures and the Programming of Movement Sequences |
| title_fullStr | Cerebellar Structures and the Programming of Movement Sequences |
| title_full_unstemmed | Cerebellar Structures and the Programming of Movement Sequences |
| title_short | Cerebellar Structures and the Programming of Movement Sequences |
| title_sort | cerebellar structures and the programming of movement sequences |
| url | http://dx.doi.org/10.3233/BEN-1990-3203 |
| work_keys_str_mv | AT albrechtwernerinhoff cerebellarstructuresandtheprogrammingofmovementsequences AT robertrafal cerebellarstructuresandtheprogrammingofmovementsequences |