Table S1.
Parameter estimates by maximum likelihood estimation and 95% confidence intervals by Monte Carlo Markov chain simulation for subject F
| Sensitivity () | Up-right bias () | Down-right bias () | Up-left bias () |
| Control | |||
| 6.468 (6.082, 6.854) | −5.800 (−6.856, −4.660) | −3.468 (−4.367, −2.524) | −2.714 (−3.513, −1.814) |
| 5.052 (4.800, 5.355) | 0.683 (0.007, 1.423) | 0.576 (−0.096, 1.286) | 0.646 (−0.043, 1.421) |
| 6.125 (5.790, 6.508) | −0.834 (−1.726, 0.060) | −2.187 (−3.164, −1.280) | −0.103 (−1.005, 0.725) |
| Signal in affected region | |||
| 4.795 (4.117, 5.900) | −12.125 (−18.200, −8.928) | −5.332 (−8.375, −3.503) | −1.292 (−2.737, −0.048) |
| 2.296 (1.788, 3.134) | −3.737 (−6.294, −2.397) | −2.540 (−4.305, −1.662) | −1.153 (−2.201, −0.501) |
| 2.732 (2.232, 3.513) | −4.567 (−6.970, −3.271) | −2.769 (−4.351, −1.839) | −0.243 (−0.999, 0.457) |
| Signal in unaffected region | |||
| 4.442 (3.783, 5.389) | −5.637 (−8.698, −3.775) | −4.127 (−6.601, −2.545) | 1.510 (0.326, 2.856) |
| 5.165 (4.429, 6.332) | −10.905 (−16.754, −7.805) | −6.585 (−10.575, −4.342) | −0.426 (−2.182, 1.333) |
| 4.960 (4.293, 6.032) | −11.174 (−16.617, −8.192) | −5.399 (−8.323, −3.606) | −0.218 (−1.619, 1.088) |
Bias terms reflect preference for the respective response option over the down-left choice. Bias of zero indicates no excess preference, and negative bias indicates that monkeys preferred the reference choice (down-left) over the corresponding response option. Even under control conditions monkeys tended to be biased away from the signal location when a single stimulus appeared on the screen, but not in the uncued or cued conditions. SC inactivation produced significant bias away from response targets within the affected region of visual space.