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emer / axon

Axon is a spiking, biologically-based neural model driven by predictive error-driven learning, for systems-level models of the brain
BSD 3-Clause "New" or "Revised" License
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vspatch is too noisy #305

Closed rcoreilly closed 1 year ago

rcoreilly commented 1 year ago

really bounces around a lot. and never gets up to match Rew levels.. needs more work.

rcoreilly commented 1 year ago

this is also evident in the pvlv posacq case -- takes a long time to kick in and is noisy.

rcoreilly commented 1 year ago

The use of GeIntMax for recv learning activation was problematic in multiple ways (too similar across neurons, underlying GeInt wasn't being reset at start of trial so there was carryover). Now using CaSpkD if above threshold, then falling back on GeIntNorm as normalized GeInt with clean integration. The long tau of GeInt allows it to do most of what Max was supposed to do, and also has more differentiation and sensitivity to sustained activity.

rcoreilly commented 1 year ago

See #306 for discussion -- now working well.