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The IDA Model’s Cognitive Cycle

Explore the IDA Model's cognitive cycle and the role of consciousness in memory. Learn about perceptual processing, attention, learning, and goal setting in cognition.

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The IDA Model’s Cognitive Cycle

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  1. The IDA Model’s Cognitive Cycle Stan Franklin Workshop on the Role of Consciousness in Memory May 1,2004—FedEx Institute of Technology

  2. The IDA Model • Conceptual model of cognition • Computational model plus additional designed but unimplemented features • A uniform model of cognition such as SOAR, Act-R, C&I • Models a broad swath of cognitive functions

  3. IDA’s Cognitive Cycle • Specifies the role of consciousness in cognition • Clarifies the relationship between consciousness and the various memories • Makes explicit the role of consciousness in recruiting relevant resources • Provides a tool for the fine-grained analysis of various cognitive tasks

  4. Perceiving • Preconscious perception • External or internal • Processing of portions of the stimuli • Construction of meaning • Recognition • Categorization

  5. Store Percept in WM • Percept stored in Working Memory’s preconscious buffers • Visuo-spatial sketchpad • Phonological loop • Buffers may contain earlier contents also • Decay time measured in seconds

  6. Local Associations • Cued by the contents of preconscious WM buffers • Retrieves local associations from • Transient episodic memory • Declarative memory • Contents of WM plus local associations occupy • Baddeley’s episodic buffer • Ericsson and Kintsch’s Long-term Working Memory

  7. Attention codelets view LTWM Form coalitions with information codelets Vie to bring various portions of contents to consciousness Coalition from a previous cycle can win Factors include Relevancy Importance Urgency Insistence Recency Competition for Consciousness

  8. Conscious Broadcast • Coalition with highest average activation is chosen • Is said to be in the spotlight, or to occupy the global workspace • The information content of the coalition is broadcast to all codelets • GW theory postulates this broadcast as the moment of phenomenal consciousness

  9. Learning Occurs • Memory updated using broadcast contents • Perceptual memory updated • Transient episodic memory updated • Procedural memory updated • Feelings and emotions modulate learning • Declarative memories consolidated later off line

  10. Setting Goal Context Hierarchy • Relevant behavior codelets respond to broadcast • Instantiate goal context hierarchy (behavior stream) if needed • Bind variables using information from conscious broadcast • Send environmental activation to appropriate behaviors

  11. Action Chosen • Behaviors (goal contexts) get activation from • Drives (feelings and emotions) • Environment (external or internal) • Other behaviors • The single behavior is chosen that • Is executable • activation over threshold • higher activation than other such behaviors

  12. Action Taken • Chosen behavior binds variables in its behavior codelets • Then activates its behavior codelets including at least one expectation codelet • These behavior codelets perform the task of the behavior • This action may effect the external or internal environment

  13. Cognitive Cycle Processing • Hypothesis — Like IDA’s, human cognitive processing is via an iterating sequence of Cognitive Cycles • Duration — Each cognitive cycle takes roughly 200 ms with steps 1 through 5 occupying about 80 ms • Cascading — Several cycles may have parts running simultaneously in parallel • Seriality — Consciousness maintains serial order and the illusion of continuity • Start — Cycle may start with action selection instead of perception

  14. Goals and Actions • Conscious goal (intention) selection • Consciously chosen over several cycles • Consciously mediated actions • Use the environment to inform the action • Internal or external action • Automatized actions • Performed unconsciously

  15. Example of Goal Selection and Subsequent Actions • Conscious goal selection • Go to the fridge for orange juice • Choice between go or wait, orange juice or coke or water • Consciously mediated action • Find and grasp the handle • Unconscious, automated actions • Pull the refrigerator door open

  16. Web and Email Addresses • Stan Franklin • franklin@memphis.edu • www.cs.memphis.edu/~franklin/ • ‘Conscious’ Software Research Group • csrg.cs.memphis.edu/

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