“Freud was inspired by the theory of thermodynamics and used the term psychodynamics to describe the processes of the mind as flows of psychological energy (libido or psi) in an organically complex brain.” [Psychodynamics – Wikipedia]
Lecture 2 | Linear models
What is a linear model?
If the derivative of a model with respect to time is a linear equation for time, we call the model linear.
“Linear” in this context means the “linear” of linear partial differential equations.
The law relating response time to practice trials had been considered the power function. The following paper says that the law had been accepted as the power function because the law was fitted to means. Instead, the paper says that the law may follow the exponential if the law are not fitted to the means.
Heathcote, A., Brown, S., & Mewhort, D. J. K. (2000). The power law repealed: The case for an exponential law of practice. Psychonomic bulletin & review, 7(2), 185-207. [LINK]
Think about cognitive phenomena that follow similarly to the Newton’s cooling law and show your thought for 2 minutes.
Summer challenge: Understanding the diffusion model
Ratcliff, R. (1978). A theory of memory retrieval. Psychological review, 85(2), 59.
Ratcliff, R., & Tuerlinckx, F. (2002). Estimating parameters of the diffusion model: Approaches to dealing with contaminant reaction times and parameter variability. Psychonomic bulletin & review, 9(3), 438-481.
Lecture 11 (5/14/2019) |
Ratcliff, R., & McKoon, G. (2008). The diffusion decision model: theory and data for two-choice decision tasks. Neural computation, 20(4), 873-922. [PDF]
Blough, D. S. (2011). A random-walk model of accuracy and reaction time applied to three experiments on pigeon visual discrimination. Journal of Experimental Psychology: Animal Behavior Processes, 37(2), 133. [PDF]
Lecture 12 (5/21/2019) |
Tavares, G., Perona, P., & Rangel, A. (2017). The attentional drift diffusion model of simple perceptual decision-making. Frontiers in neuroscience, 11, 468. [PDF]