Table 1.
Ipsiversive Saccade |
Contraversive Saccades |
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Summary of Fig. 3, A and B |
Regression Model |
Summary of Fig. 6B |
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Side Right/Left |
Saccade |
ABD |
a (Eye Position) |
b (Eye Velocity) |
c (Constant) |
Saccade |
ABD Pause |
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Unit | Monkey | ABD | cFN | Position Threshold | Amp. | Dur. | P-Vel. | n-Spi. | B-Dur. | P-FR | Pre | Post | Pre | Post | Pre | Post | Amp. | Dur. | P-Vel. | Dur. | Start | End |
1 | A | L | L | <−25 | * | ns | * | ns | ns | ns | 4.26 ± 0.77 | 4.01 ± 0.73* | 0.67 ± 0.21 | 0.59 ± 0.23* | 32.52 ± 6.69 | 33.73 ± 4.67 ns | * | ns | * | * | ns | * |
2 | A | L | L | <−25 | * | * | * | * | * | ns | 1.61 ± 1.23 | 1.81 ± 1.04 ns | 0.37 ± 0.04 | 0.36 ± 0.05* | 78.37 ± 5.27 | 76.90 ± 4.10* | * | * | * | * | ns | * |
3 | A | L | L | <−25 | * | * | * | * | ns | ns | 3.74 ± 0.24 | 3.95 ± 0.27* | 0.20 ± 0.03 | 0.19 ± 0.03 ns | 82.14 ± 1.99 | 81.42 ± 2.21* | ns | na | na | na | na | na |
4 | A | R | R | <−25 | * | * | * | * | * | * | 2.41 ± 0.72 | 2.58 ± 0.45* | 0.13 ± 0.03 | 0.12 ± 0.03* | 39.80 ± 4.74 | 52.25 ± 4.82* | ns | na | na | na | na | na |
5 | C | R | R | <−20 | * | * | * | * | * | ns | 7.15 ± 1.81 | 7.10 ± 1.17 ns | 1.14 ± 0.27 | 0.84 ± 0.21* | 85.00 ± 5.29 | 86.19 ± 4.64 ns | * | * | * | ns | ns | ns |
6 | C | R | R | <−20 | * | * | * | * | * | ns | 4.93 ± 0.52 | 4.43 ± 0.53* | 0.25 ± 0.09 | 0.19 ± 0.06* | 40.47 ± 4.15 | 44.27 ± 5.21* | ns | na | na | na | na | na |
7 | C | L | L | <−20 | * | ns | * | * | * | * | 5.38 ± 0.37 | 5.40 ± 0.31 ns | 0.16 ± 0.03 | 0.15 ± 0.03* | 60.10 ± 4.22 | 59.58 ± 4.83 ns | * | ns | ns | * | ns | * |
8 | C | L | L | <−20 | * | ns | * | * | * | * | 3.76 ± 0.47 | 3.80 ± 0.59 ns | 0.11 ± 0.03 | 0.12 ± 0.03 ns | 85.27 ± 4.40 | 86.61 ± 5.00 ns | * | ns | * | ns | ns | ns |
9 | C | R | R | <−20 | * | * | * | * | * | * | 5.44 ± 0.98 | 5.03 ± 1.20 ns | 0.29 ± 0.07 | 0.24 ± 0.09* | 83.74 ± 6.04 | 75.91 ± 8.06* | * | * | * | * | * | * |
10 | C | L | L | <−20 | * | ns | * | * | * | * | 4.40 ± 0.45 | 4.21 ± 0.41* | 0.16 ± 0.04 | 0.14 ± 0.04* | 64.38 ± 3.13 | 55.27 ± 5.22* | * | * | * | * | ns | * |
11 | C | R | R | <−20 | * | * | * | * | * | * | 6.02 ± 0.63 | 5.58 ± 0.68* | 0.24 ± 0.04 | 0.23 ± 0.03* | 68.11 ± 5.12 | 66.74 ± 4.04 ns | * | * | * | ns | ns | ns |
12 | A | L | L | <−20 | * | * | ns | * | * | ns | 5.14 ± 0.50 | 4.77 ± 0.50* | 0.38 ± 0.04 | 0.35 ± 0.03* | 43.70 ± 9.64 | 50.73 ± 13.74* | * | ns | * | * | ns | * |
13 | C | R | R | <−15 | * | * | * | * | ns | * | 8.37 ± 2.85 | 9.50 ± 2.68* | 1.02 ± 0.26 | 0.93 ± 0.33 ns | 47.39 ± 15.11 | 47.75 ± 10.40 ns | * | ns | * | * | ns | * |
14 | C | R | R | <−15 | * | * | * | * | * | ns | 5.44 ± 0.45 | 5.07 ± 0.31* | 0.23 ± 0.06 | 0.21 ± 0.04* | 64.80 ± 3.34 | 63.15 ± 2.89* | * | * | * | * | ns | * |
15 | A | L | L | <−10 | * | * | ns | * | ns | * | 7.76 ± 0.90 | 8.60 ± 0.92* | 0.52 ± 0.11 | 0.44 ± 0.08* | 61.56 ± 10.27 | 67.14 ± 6.65* | ns | na | na | na | na | na |
16 | C | R | R | <−5 | * | * | ns | * | * | ns | 7.96 ± 0.51 | 8.25 ± 0.37* | 0.37 ± 0.10 | 0.34 ± 0.07 ns | 54.28 ± 5.57 | 53.09 ± 4.09 ns | ns | na | na | na | na | na |
17 | C | L | L | <−5 | * | * | * | * | * | ns | 3.49 ± 0.65 | 3.69 ± 0.49* | 0.11 ± 0.05 | 0.11 ± 0.04 ns | 55.40 ± 5.26 | 52.86 ± 3.70* | ns | na | na | na | na | na |
19 | C | R | R | <0 | * | * | * | * | * | * | 9.44 ± 1.24 | 9.20 ± 0.79 ns | 0.48 ± 0.11 | 0.41 ± 0.09* | 42.91 ± 8.65 | 41.64 ± 8.41 ns | * | * | * | * | ns | * |
18 | C | R | R | <0 | * | * | * | * | * | * | 9.78 ± 0.74 | 9.39 ± 1.51 ns | 0.38 ± 0.05 | 0.32 ± 0.05* | 46.93 ± 9.66 | 39.95 ± 18.70* | * | ns | ns | ns | ns | ns |
20 | C | L | L | <0 | * | ns | * | * | * | * | 3.60 ± 0.97 | 3.97 ± 1.01 ns | 0.11 ± 0.08 | 0.18 ± 0.11* | 59.29 ± 4.99 | 62.94 ± 5.93* | ns | na | na | na | na | na |
21 | C | L | L | <+5 | * | ns | * | ns | ns | ns | 3.33 ± 0.78 | 3.65 ± 0.65* | 0.19 ± 0.14 | 0.13 ± 0.06* | 35.84 ± 6.16 | 48.71 ± 9.02* | * | * | * | * | * | * |
22 | C | R | R | <+10 | * | ns | * | ns | ns | * | 11.88 ± 0.95 | 11.97 ± 1.04 ns | 0.34 ± 0.07 | 0.33 ± 0.07 ns | 42.86 ± 8.57 | 37.74 ± 7.52* | * | ns | ns | ns | ns | ns |
We ordered these neurons by their position thresholds from most contralateral (−) to most ipsilateral (+).
ABD, abducens; cFN, cerebellar fastigial nucleus; Amp., amplitude; B-Dur., burst duration; Vel., velocity; Spi., spikes; FR, firing rate; L, left; R, right.
Significant; ns, not significant; na, not applicable.