Auditory Cortex Receptive Field Simulator

Randomized frequency × intensity tone pips, with an underlying V-shaped tuning curve (threshold rises away from CF). The heatmap fills in as trials are presented—like building a basic FRA (frequency response area).

Stopped
Trials0
OrderRandom

Hidden neuron parameters (tuning)

The “V” is implemented as a threshold curve: thr(f) = thrMin + vSlope · |log2(f / CF)|. Above threshold, firing rises with intensity and peaks near CF.
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FRA Heatmap (observed)
Each cell is the running mean firing rate (spk/s) for that frequency/intensity.
Current stim—

Last trial response

Mini-plot shows the hidden threshold curve (dashed) and current (f,dB) point.

Status

Conditions
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Total trials
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Progress
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Mean FR
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Peak FR
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How to use in teaching

1) Pick ranges and resolution (counts).
2) Click Start (random order helps).
3) Watch the V-shaped “response area” appear as more cells get sampled.
4) Click New Random Neuron to show a different CF/slope/noise profile.
Tip: This is a conceptual simulator—not calibrated SPL. In real experiments you would use a calibrated speaker, a fixed SPL reference, and compute firing from spike times within a response window.