| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH |
|
|
|
|||||||
|
|||||||||
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 Psychology, Northwestern University, Evanston, IL, USA
2 Neurobiology and Physiology, Northwestern University, Evanston, IL, USA
* To whom correspondence should be addressed. E-mail: r-ratcliff{at}nwu.edu.
Recently, models in psychology have been shown capable of accounting for the full range of behavioral data from simple two-choice decision tasks: mean reaction times for correct and error responses, accuracy, and the reaction time distributions for correct and error responses. At the same time, recent data from neural recordings have allowed investigation of the neural systems that implement such decisions. In the experiment presented here, neural recordings were obtained from superior colliculus prelude/buildup cells in two monkeys while they performed a two-choice task that has been used in humans for testing psychological models of the decision process. The best-developed psychological model, the diffusion model, and a competing model, the Poisson counter model, were explicitly fit to the behavioral data. The pattern of activity shown in the prelude/buildup cells, including the point at which response choices were discriminated, was matched by the evidence accumulation process predicted from the diffusion model using the parameters from the fits to the behavioral data, but not by the Poisson counter model. These results suggest that prelude/buildup cells in the superior colliculus, or cells in circuits in which the superior colliculus cells participate, implement a diffusion decision process or a variant of the diffusion process.
This article has been cited by other articles:
|
|
 |
|
  M. E. Wheeler, S. E. Petersen, S. M. Nelson, E. J. Ploran, and K. Velanova Dissociating Early and Late Error Signals in Perceptual Recognition J. Cogn. Neurosci., December 1, 2008; 20(12): 2211 - 2225. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Yoshida, K. Takaura, R. Kato, T. Ikeda, and T. Isa Striate Cortical Lesions Affect Deliberate Decision and Control of Saccade: Implication for Blindsight J. Neurosci., October 15, 2008; 28(42): 10517 - 10530. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Liu and M. A. Basso Substantia Nigra Stimulation Influences Monkey Superior Colliculus Neuronal Activity Bilaterally J Neurophysiol, August 1, 2008; 100(2): 1098 - 1112. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. Kim and M. A. Basso Saccade Target Selection in the Superior Colliculus: A Signal Detection Theory Approach J. Neurosci., March 19, 2008; 28(12): 2991 - 3007. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. J. Ploran, S. M. Nelson, K. Velanova, D. I. Donaldson, S. E. Petersen, and M. E. Wheeler Evidence Accumulation and the Moment of Recognition: Dissociating Perceptual Recognition Processes Using fMRI J. Neurosci., October 31, 2007; 27(44): 11912 - 11924. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 R. Ratcliff and G. McKoon The Diffusion Decision Model: Theory and Data for Two-Choice Decision Tasks Neural Comput., April 1, 2007; 20(4): 873 - 922. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Ratcliff, Y. T. Hasegawa, R. P. Hasegawa, P. L. Smith, and M. A. Segraves Dual Diffusion Model for Single-Cell Recording Data From the Superior Colliculus in a Brightness-Discrimination Task J Neurophysiol, February 1, 2007; 97(2): 1756 - 1774. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. J. H. Ludwig, J. W. Mildinhall, and I. D. Gilchrist A Population Coding Account for Systematic Variation in Saccadic Dead Time J Neurophysiol, January 1, 2007; 97(1): 795 - 805. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Cisek Integrated neural processes for defining potential actions and deciding between them: a computational model. J. Neurosci., September 20, 2006; 26(38): 9761 - 9770. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K.-M. Lee and E. L. Keller Symbolic Cue-Driven Activity in Superior Colliculus Neurons in a Peripheral Visual Choice Task J Neurophysiol, June 1, 2006; 95(6): 3585 - 3595. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Campos, A. Cherian, and M. A. Segraves Effects of Eye Position upon Activity of Neurons in Macaque Superior Colliculus J Neurophysiol, January 1, 2006; 95(1): 505 - 526. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. C. Huk and M. N. Shadlen Neural Activity in Macaque Parietal Cortex Reflects Temporal Integration of Visual Motion Signals during Perceptual Decision Making J. Neurosci., November 9, 2005; 25(45): 10420 - 10436. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. J. H. Ludwig, I. D. Gilchrist, E. McSorley, and R. J. Baddeley The Temporal Impulse Response Underlying Saccadic Decisions J. Neurosci., October 26, 2005; 25(43): 9907 - 9912. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. HOLMES, E. SHEA-BROWN, J. MOEHLIS, R. BOGACZ, J. GAO, G. ASTON-JONES, E. CLAYTON, J. RAJKOWSKI, and J. D. COHEN Optimal Decisions: From Neural Spikes, through Stochastic Differential Equations, to Behavior IEICE Trans A: Fundamentals, October 1, 2005; E88-A(10): 2496 - 2503. [Abstract] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH |
| Visit Other APS Journals Online |
