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Alexander Schlegel

Possible papers associated with this exact author name in Arrow. This page groups case-insensitive exact name matches and is not a full identity disambiguation profile.

2 papers
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2

AAAI Conference 2018 Conference Paper

Behavior Is Everything: Towards Representing Concepts with Sensorimotor Contingencies

  • Nicholas Hay
  • Michael Stark
  • Alexander Schlegel
  • Carter Wendelken
  • Dennis Park
  • Eric Purdy
  • Tom Silver
  • D. Scott Phoenix

AI has seen remarkable progress in recent years, due to a switch from hand-designed shallow representations, to learned deep representations. While these methods excel with plentiful training data, they are still far from the human ability to learn concepts from just a few examples by reusing previously learned conceptual knowledge in new contexts. We argue that this gap might come from a fundamental misalignment between human and typical AI representations: while the former are grounded in rich sensorimotor experience, the latter are typically passive and limited to a few modalities such as vision and text. We take a step towards closing this gap by proposing an interactive, behavior-based model that represents concepts using sensorimotor contingencies grounded in an agent’s experience. On a novel conceptual learning and benchmark suite, we demonstrate that conceptually meaningful behaviors can be learned, given supervision via training curricula.

YNIMG Journal 2015 Journal Article

The artist emerges: Visual art learning alters neural structure and function

  • Alexander Schlegel
  • Prescott Alexander
  • Sergey V. Fogelson
  • Xueting Li
  • Zhengang Lu
  • Peter J. Kohler
  • Enrico Riley
  • Peter U. Tse

How does the brain mediate visual artistic creativity? Here we studied behavioral and neural changes in drawing and painting students compared to students who did not study art. We investigated three aspects of cognition vital to many visual artists: creative cognition, perception, and perception-to-action. We found that the art students became more creative via the reorganization of prefrontal white matter but did not find any significant changes in perceptual ability or related neural activity in the art students relative to the control group. Moreover, the art students improved in their ability to sketch human figures from observation, and multivariate patterns of cortical and cerebellar activity evoked by this drawing task became increasingly separable between art and non-art students. Our findings suggest that the emergence of visual artistic skills is supported by plasticity in neural pathways that enable creative cognition and mediate perceptuomotor integration.