The Stochastic Modeling of Elementary Psychological Processes

  title={The Stochastic Modeling of Elementary Psychological Processes},
  author={James T. Townsend and F. Gregory Ashby},
When Should I Use my Active Workstation? The impact of Physical Demand and Task Difficulty on IT Users’ Perception and Performance
It is argued that physical demand and task difficulty play a role in influencing IT users’ performance and perceptions when using active workstations and will help organizations and employees determine if it is appropriate for them to use active workStations.
Do different attention capture paradigms measure different types of capture?
Results suggest that capture may in fact be strongly determined by idiosyncratic task demands and strategies and demonstrate that, even for relatively simple laboratory measures of attention, there are still important gaps in knowledge regarding what these paradigms measure and how they are related.
Poisson race models: theory and application in conjoint choice analysis
Conjoint choice experiments are widely used to study consumer preference among a set of product alternatives. Traditional models (such as the multinomial logit model) for conjoint choice analysis
Time-dependent Poisson counter models of response latency in simple judgment.
The counter model is generalized to allow the Poisson event rate to vary with time and closed-form expressions are obtained for response probabilities under a proportional-rates assumption and for mean RT under conditions in which the integrated event rate increases as an arbitrary power of time.
CHAPTER 11 Uncovering Mental Architecture and Related Mechanisms in Elementary Human Perception , Cognition , and Action
The approach lies within the confines of mathematical theory and methodology and concentrates on behavioral data, although some inroads and prospects for fusion with physiological techniques will be mentioned.
Parallel versus serial processing and individual differences in high-speed search in human memory
New methodologies are employed to assess serial versus parallel processing and find strong evidence for pure serial or pure parallel processing, with some striking apparent differences across individuals and interstimulus conditions.
The serial-parallel dilemma: A case study in a linkage of theory and method
The present article reviews the theoretical and empirical history of inquiries into whether humans perceive, remember, or cognize psychological items simultaneously and details situations in which decisive experimental tests are possible.
A Poisson random walk model of response times.
The idea of a simple race to continuous sampling of evidence in favor of a certain response category is extended and the resulting Poisson random walk model is a TVA-based response time model in which categories are reported based on the amount of evidence obtained.
Examining the effects of passive and active strategies on behavior during hybrid visual memory search: evidence from eye tracking
Investigating the role that cognitive strategies play in facilitating hybrid search found that oculomotor behavior in passive hybrid search was characterized by longer saccades, improved attentional guidance, and an improved ability to identify items as targets or distractors (relative to active hybrid search).


It composes an interrelated set of mathematical and experimental techniques designed to uncover the underlying functional processes that take place during performance on a cognitive task
  • Although there are certain limitations in the theory as it stands, it goes
  • 1978
i950; Bush & Mosteller 1955), and in human signal detection
  • 1955
Until a tractable stochastic model is available, we will have to be content with the approximate predictions of a deterministic model
  • 1980
1974b) and independently by Atkinson et al
  • 1969
showed that the size of a small memory loa.d (from one to four items) does not aff~ct a same-different task
  • 1972
1973; see Sternberg 1975 for a much more extensive list of replications and exceptions in the LT task)
  • 1975
In that study, the observers read displays of letters for several milliseconds and indicated which of three potential target letters were present among the others
  • The instructed reading path (order) through the display was manipulated by assigning differential point values to the two sep-
  • 1971