Cognitive models are mathematical frameworks providing a quantitative account of cognitive mechanisms underlying an individual’s behavior. This line of research has followed three key areas: 1. approaches towards constraining cognitive models for more reliable estimates (Molloy et al., 2018), 2. leveraging joint models to uncover mechanisms central to conflict processing (missing reference), and 3. applying cognitive modeling frameworks to study delay discounting (Molloy et al., 2020; Turner et al., 2019). Overall, modeling can improve psychometric properties of behavior and uncovers distinct cognitive processes that relate to individual differences.
References
2020
-
Hierarchies improve individual assessment of temporal discounting behavior.
M. Fiona Molloy, Ricardo J. Romeu, Peter D. Kvam, Peter R. Finn, Jerome Busemeyer, and Brandon M. Turner
Decision, Jun 2020
Publisher: US: Educational Publishing Foundation
2019
-
On the Neural and Mechanistic Bases of Self-Control
Brandon M Turner, Christian A Rodriguez, Qingfang Liu, M Fiona Molloy, Marjolein Hoogendijk, and Samuel M McClure
Cerebral Cortex, Feb 2019
Intertemporal choice requires a dynamic interaction between valuation and deliberation processes. While evidence identifying candidate brain areas for each of these processes is well established, the precise mechanistic role carried out by each brain region is still debated. In this article, we present a computational model that clarifies the unique contribution of frontoparietal cortex regions to intertemporal decision making. The model we develop samples reward and delay information stochastically on a moment-by-moment basis. As preference for the choice alternatives evolves, dynamic inhibitory processes are executed by way of asymmetric lateral inhibition. We find that it is these lateral inhibition processes that best explain the contribution of frontoparietal regions to intertemporal decision making exhibited in our data.
2018
-
What’s in a response time?: On the importance of response time measures in constraining models of context effects.
M. Fiona Molloy, Matthew Galdo, Giwon Bahg, Qingfang Liu, and Brandon M. Turner
Decision, Feb 2018
Publisher: US: Educational Publishing Foundation