PSYC3002: Modelling Decision-Making

The heliocentric model provides a better fit to the data and explains retrograde motion via the notion that planets travel at different speeds along their orbits.

Models help us predict and explain complex systems by abstracting key features and allowing us to instantiate, integrate, and compare different theories.

Psychologists typically work with statistical models, such as regression models. Other examples of models include mechanical models (e.g., a physical model of the DNA double helix) and computational models (e.g., drift-diffusion model for decision making).

<p>A model represents its target system, but is not the system itself, similar to how a map represents its territory but is not the territory itself.</p> Signup and view all the answers

<p>The drift-diffusion model is a computational model of decision making. It can be used to study how people decide what is true or false, and to analyze response times in decision-making tasks.</p> Signup and view all the answers

<p>Computational model, specifically an evidence accumulation model</p> Signup and view all the answers

<p>Models allow us to instantiate and integrate different theories by providing a framework for testing and comparing their predictions.</p> Signup and view all the answers

<p>Data do not speak for themselves, but rather are interpreted through the lens of a model, which abstracts key features of the system being studied.</p> Signup and view all the answers

<p>A leading computational model that belongs to the class of evidence accumulation models</p> Signup and view all the answers

<p>Using multiple models allows us to compare their predictions and choose the one that best fits the data, leading to a better understanding of the phenomenon.</p> Signup and view all the answers

<p>As control bars that configure a system's output, similar to buttons in a stereo system</p> Signup and view all the answers

<p>It can account for response time in each decision context</p> Signup and view all the answers

<p>Response caution, speed of evidence accumulation, and initial level of evidence or expectation</p> Signup and view all the answers

<p>They provide an excellent fit to data from various decision-making tasks</p> Signup and view all the answers

<p>Different parameters produce different model predictions regarding the choice and response time</p> Signup and view all the answers

<p>Computational psychology uses statistical models, such as the drift diffusion model, to understand decision-making processes</p> Signup and view all the answers

<p>To find the best-fitting values that allow the simulation to most closely replicate the empirical data</p> Signup and view all the answers

<p>Evidence Accumulation Models, specifically the Drift Diffusion Model</p> Signup and view all the answers

<p>It allows for a better understanding of the neural basis of decision-making and choice</p> Signup and view all the answers

<p>They have not been integrated with the social identity approach</p> Signup and view all the answers

<p>It influences decisions about what is true, and is related to memory of identity-relevant information</p> Signup and view all the answers

<p>It demonstrated the effect of randomly assigning participants to adopt different identities on their decisions about what is true</p> Signup and view all the answers

<p>To understand the underlying psychological processes that govern decision-making and choice</p> Signup and view all the answers

<p>It provides a mathematical framework for understanding the underlying psychological processes and making predictions about human behavior</p> Signup and view all the answers