Rensselaer Department of Cognitive Science Department of Computer Science
Rensselaer Artificial Intelligence and Reasoning (RAIR) Laboratory
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Advanced Synthetic Characters/RASCALS Cognitive Architecture

Advanced Synthetic Characters: Click to view screenshot
Advanced synthetic characters don't merely evoke *beliefs* that they have various mental properties; rather, they must actually *have* such properties. You might (e.g.) believe a standard synthetic character to be evil, but you would of course be wrong. An *advanced* synthetic character, however, can literally *be* evil, because it has the requisite desires, beliefs, and cognitive powers. Our approach is based on the new RASCALS cognitive architecture, which uses simple logical systems (first-order ones) for low-level (perception & action) and mid-level cognition, and advanced logical systems (e.g., epistemic and deontic logics) for more abstract cognition.

RASCALS Cognitive Architecture: Click to view diagram


False Belief Demo in Second Life (automated mature subject)
March 4, 2008
False Belief in Second Life (MOV)


Conversation demo with background knowledge
August 20, 2007
Background Knowledge in Second Life (MOV)(WMV)


False Belief Demo in Second Life (semi-automated immature subject)
August 10, 2007
False Belief in Second Life (MOV)(WMV)


False Belief Demo in Second Life (non-automated mature subject)
June 29, 2007
False Belief in Second Life (MOV)(WMV)
ASC/RCA Project Links
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Game On 2005
ASC/RCA Project Team
  - Selmer Bringsjord
  - Steve Nerbetski
Project Alums:
  - Chris McEvoy at
    Vicarious Visions
  - Sunny Khemlani