Category Archives: cognitive science

Acquisition of Social Network Structure

by Jason J. Jones
Scale Free Graph

On Tuesday at the HNG meeting I’ll be discussing three experiments I’ve conducted on the acquisition of social network structure. For a preview, you can read my submission to CogSci 2011 which discusses one of the experiments.

Game Theory of Mind

by Yunkyu Sohn

Traditional game theory assumes that the level of recursive belief inference is infinite when people choose their strategy as a result of guessing the others’ strategies. For example, in Keynesian beauty contest where all participants are asked to pick a number between 0 and 100 and win if one is the closest to 2/3 of population average, Nash equilibrium predicts all players should chose 0 since recursive inference about others’ preference will decrease the value of your choice, and eventually reach the minimum possible value. However studies in behavioral economics have found that the degree of recursion is bounded to smaller values.

By running a 2 dimensional stag-hunt game, recent fMRI experimental study done by Yoshida et al. demonstrates that people vary their level of inference depending on their partner’s past strategic profiles. Imaging result shows that prefrontal cortex region is subdivided by its roles for encoding uncertainty of inference of partner’s strategy and inferring the degree of recursive inference.

The Cognitive Science of Consciousness

By Patrick Rogers

The current issue of Cognitive Neuroscience is a special issue on the neuroscience of consciousness. Of particular interest is the article by Victor A.F. Lamme, “How neuroscience will change our view consciousness“. From the abstract:

…the study of consciousness is dominated by what we know from introspection and behavior. This has fooled us into thinking that we know what we are conscious of. …in fact we don’t know what we are conscious of. …The exercise is an example of how neuroscience will move us away from psychological intuitions about consciousness, and hence depict a notion of consciousness that may go against our deepest conviction: “My consciousness is mine, and mine alone.” It’s not.

The rest of the issue is behind a paywall (UCSD has institutional access), but this article freely available to everyone.