Abstract
The electrooculographic technique was used to record smooth pursuit eye movements in 71 healthy subjects homogeneously distributed within an age range between the 2nd and the 6th decades. The target moved at constant velocity (triangular ramps) and 9 different target velocities (V), from 10 deg/s to 50 deg/s were considered and presented according to pseudorandom sequence. Ad hoc software suppressed catch-up saccades so that a pursuit index (PI) value was computed for each ramp taking into account only the smooth pursuit tracking modality. It was demonstrated that the relationship between V and PI could be described by the linear model PI = a + b * V. Pursuit index was proved to be influenced by the age of subject (decade factor in the analysis of variance), since an almost linear increase in b values yields a reduction of pursuit index values. The method was tested in 22 multiple sclerosis patients and an association was found between the occurrence of cerebellar signs and the reduction of a value.
| Original language | English |
|---|---|
| Pages (from-to) | 273-278 |
| Number of pages | 6 |
| Journal | Acta Neurologica Scandinavica |
| Volume | 88 |
| Issue number | 4 |
| Publication status | Published - 1993 |
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Keywords
- aging
- quantitative evaluation
- smooth pursuit
ASJC Scopus subject areas
- Clinical Neurology
- Neuroscience(all)
Cite this
A clinically oriented approach to smooth pursuit eye movement quantitative evaluation. / Versino, M.; Beltrami, G.; Zambarbieri, D.; Castelnovo, G.; Bergamaschi, R.; Romani, A.; Cosi, V.
In: Acta Neurologica Scandinavica, Vol. 88, No. 4, 1993, p. 273-278.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A clinically oriented approach to smooth pursuit eye movement quantitative evaluation
AU - Versino, M.
AU - Beltrami, G.
AU - Zambarbieri, D.
AU - Castelnovo, G.
AU - Bergamaschi, R.
AU - Romani, A.
AU - Cosi, V.
PY - 1993
Y1 - 1993
N2 - The electrooculographic technique was used to record smooth pursuit eye movements in 71 healthy subjects homogeneously distributed within an age range between the 2nd and the 6th decades. The target moved at constant velocity (triangular ramps) and 9 different target velocities (V), from 10 deg/s to 50 deg/s were considered and presented according to pseudorandom sequence. Ad hoc software suppressed catch-up saccades so that a pursuit index (PI) value was computed for each ramp taking into account only the smooth pursuit tracking modality. It was demonstrated that the relationship between V and PI could be described by the linear model PI = a + b * V. Pursuit index was proved to be influenced by the age of subject (decade factor in the analysis of variance), since an almost linear increase in b values yields a reduction of pursuit index values. The method was tested in 22 multiple sclerosis patients and an association was found between the occurrence of cerebellar signs and the reduction of a value.
AB - The electrooculographic technique was used to record smooth pursuit eye movements in 71 healthy subjects homogeneously distributed within an age range between the 2nd and the 6th decades. The target moved at constant velocity (triangular ramps) and 9 different target velocities (V), from 10 deg/s to 50 deg/s were considered and presented according to pseudorandom sequence. Ad hoc software suppressed catch-up saccades so that a pursuit index (PI) value was computed for each ramp taking into account only the smooth pursuit tracking modality. It was demonstrated that the relationship between V and PI could be described by the linear model PI = a + b * V. Pursuit index was proved to be influenced by the age of subject (decade factor in the analysis of variance), since an almost linear increase in b values yields a reduction of pursuit index values. The method was tested in 22 multiple sclerosis patients and an association was found between the occurrence of cerebellar signs and the reduction of a value.
KW - aging
KW - quantitative evaluation
KW - smooth pursuit
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M3 - Article
C2 - 8256572
AN - SCOPUS:0027365098
VL - 88
SP - 273
EP - 278
JO - Acta Neurologica Scandinavica
JF - Acta Neurologica Scandinavica
SN - 0001-6314
IS - 4
ER -