Table of Contents
Cellular and circuit mechanisms of persistent neural activity
The computer and the brain
Flip-flop: multistability & memory
Short-term vs. long-term memory
Delayed-match-to-sample task
Cortical areas of macaque
Dorsal and ventral streams
Visual stimuli
Delay activity in IT cortex
Memory of object locations
Dynamic transformation
Memory-related neural activity
How does a transient stimulus cause a lasting change in neural activity?
Hypothetical mechanisms
People
Control of eye position
Memory of eye position
Where the memory is stored
Localization criteria
Damaging the memory
Neural coding of eye position
Oculomotor persistent activity
Analog coding
Cellular models
Membrane bistability
Intracellular recording
Current injection
Synaptic facilitation
Cellular mechanisms
Network models
Persistent activity in an autapse
Intrinsic currents
Synaptic currents
PPT Slide
Reduced model
Linear feedback theory
Mistuned positive feedback
Correlations
Dual microelectrode recording
PPT Slide
Dual electrode recording
Conclusion
The computer and the brain
Discrete vs. continuous attractors
Energy function
Behavioral plasticity
Hebb’s theory
Line attractor dynamics
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