Modeling Response Times for Two-Choice Decisions

Psychological Science - Tập 9 Số 5 - Trang 347-356 - 1998
Roger Ratcliff1, Jeffrey N. Rouder2
1Northwestern U Psychology Dept, Evanston, IL, US
2Northwestern University

Tóm tắt

The diffusion model for two-choice real-time decisions is applied to four psychophysical tasks. The model reveals how stimulus information guides decisions and shows how the information is processed through time to yield sometimes correct and sometimes incorrect decisions. Rapid two-choice decisions yield multiple empirical measures: response times for correct and error responses, the probabilities of correct and error responses, and a variety of interactions between accuracy and response time that depend on instructions and task difficulty. The diffusion model can explain all these aspects of the data for the four experiments we present. The model correctly accounts for error response times, something previous models have failed to do. Variability within the decision process explains how errors are made, and variability across trials correctly predicts when errors are faster than correct responses and when they are slower.

Từ khóa


Tài liệu tham khảo

10.1111/j.2044-8317.1965.tb00342.x

10.1037/0033-295X.100.3.432

10.3758/BF03211666

Estes W.K., 1995, Sources of coherence in text comprehension, 51

Feller W., 1968, An introduction to probability theory and its applications

10.1007/BF02289645

Laming D.R.J., 1968, Information theory of choice reaction time

10.1007/BF02291481

Luce R.D., 1986, Response times

10.3758/BF03211715

10.1037/0033-295X.104.2.266

10.1037/0033-295X.85.2.59

10.1037/0033-295X.88.6.552

10.1037/0033-295X.92.2.212

10.1037/0033-295X.95.2.238

10.1037/0033-295X.83.3.190

Ratcliff R., Psychological Review

10.1006/jmps.1996.0030

10.1037/0033-295X.102.3.567

10.1016/0022-2496(88)90043-0

10.1007/BF02289729

10.1037/0278-7393.20.2.318

10.3758/BF03212837

10.3758/BF03214411

Vickers D., 1979, Decision processes in visual perception

10.1016/0001-6918(71)90018-7

Thông tin
Thông tin xuất bản

Psychological Science

Tập 9 Số 5

347-356

Thông tin tác giả