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Jackie Chappell
Cognitive Adaptations Research Group
new  caledonian  crows  cogsci  animal  cognition 
5 weeks ago by sky
[1801.08116] Psychlab: A Psychology Laboratory for Deep Reinforcement Learning Agents
"Psychlab is a simulated psychology laboratory inside the first-person 3D game world of DeepMind Lab (Beattie et al. 2016). Psychlab enables implementations of classical laboratory psychological experiments so that they work with both human and artificial agents. Psychlab has a simple and flexible API that enables users to easily create their own tasks. As examples, we are releasing Psychlab implementations of several classical experimental paradigms including visual search, change detection, random dot motion discrimination, and multiple object tracking. We also contribute a study of the visual psychophysics of a specific state-of-the-art deep reinforcement learning agent: UNREAL (Jaderberg et al. 2016). This study leads to the surprising conclusion that UNREAL learns more quickly about larger target stimuli than it does about smaller stimuli. In turn, this insight motivates a specific improvement in the form of a simple model of foveal vision that turns out to significantly boost UNREAL's performance, both on Psychlab tasks, and on standard DeepMind Lab tasks. By open-sourcing Psychlab we hope to facilitate a range of future such studies that simultaneously advance deep reinforcement learning and improve its links with cognitive science."
papers  reinforcement-learning  cogsci  simulation 
7 weeks ago by arsyed
Exploring an Alternate Universe | Lapham’s Quarterly
What seemed even more significant was that I could remember the experience of LSD inebriation in every detail. This could only mean that the conscious recording function was not interrupted, even in the climax of the LSD experience, despite the profound breakdown of the normal worldview. For the entire duration of the experiment, I had even been aware of participating in an experiment, but despite this recognition of my condition, I could not, with every exertion of my will, shake off the LSD world. Everything was experienced as completely real, as alarming reality—alarming, because the picture of the other, familiar everyday reality was still fully preserved in the memory for comparison.
drugs  lsd  memory  cogsci 
10 weeks ago by danbri
Jean-Pierre Changeux - Wikipedia
As put forth in his book, Conversations on Mind, Matter and Mathematics, Changeux strongly supports the view that the nervous system functions in a projective rather than reactive style and that interaction with the environment, rather than being instructive, results in the selection amongst a diversity of preexisting internal representations.
mathematics  cogsci 
11 weeks ago by tonyyet
The Creative Cognition Approach | The MIT Press
Mental processes are the essence of creative endeavor. The Creative Cognition Approach extends this particular view of creativity, first proposed and developed by the editors in their earlier book Creative Cognition, to the programs and theoretical views of some of the most prominent researchers in the areas of problem solving, concept formation, and thinking. Chapters cover a wide range of approaches and processes that play a role in creative cognition, from those that have their roots in associationism (the notion that creative ideas are produced incrementally), to the Gestalt point of view (particularly insight), to current computational approaches. Each chapter deals with central issues in cognition and creativity, and many consider new ways in which creativity can be studied under controlled conditions.

The Creative Cognition Approach begins with a new look at an ancient subject, dreams. It then takes up intuition and insight from a contemporary cognitive perspective, and the importance of using prior knowledge in the incremental view of creative problem solving, which is contrasted with the importance of various forms of fixation and sudden insight. Studies are presented that provide new methods for distinguishing insight problem solving from analytic problem solving, and a general description of recall, problem solving, and creative thinking is provided along with relevant experimental evidence.

Numerous laboratory studies of creative idea generation are described that reveal the conceptual structures that give rise to imaginative thinking. Visual representations are considered in the context of memory distortions, and in the use of diagrams in scientific discovery. Models that help clarify the relation between comprehension and creativity are discussed, and a novel integration of ideas (primary and secondary process thinking, conditioning, genetic algorithms, chaos theory, the thermodynamics of crystallography) are brought together in a connectionist framework. A multivariate investment approach is used to study creative performance, and criteria for assessing and enhancing creative realism are detailed.
Ronald_Finke  cogsci  creativity 
december 2017 by tonyyet

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