Table 1 Comparison of the time domain response of CORDIC_HR and N_LUT_HR neurons compared to the original HR neuron model.

From: Efficient digital design of the nonlinear behavior of Hindmarsh–Rose neuron model in large-scale neural population

Object variable

Mean absolute error

Correlation

Root mean square error

CORDIC_HR

N-LUT_HR22

CORDIC_HR

N-LUT_HR22

CORDIC_HR

N-LUT_HR22

X (I = 0.5)

6.57E−04

0.23

0.9999

0.95

0.0026

0.13

X (I = 1.0)

0.0027

0.73

0.9947

0.99

0.0243

1.02

X (I = 1.5)

0.0714

0.23

0.7612

0.99

0.1856

2.02

X (I = 2.0)

0.1008

0.13

0.8702

0.97

0.2055

0.25

Y (I = 0.5)

8.90E−03

0.12

1

0.95

0.0112

0.22

Y (I = 1.0)

0.0256

0.11

0.9989

0.98

0.061

0.42

Y (I = 1.5)

0.2266

0.33

0.9292

0.99

0.4691

1.01

Y (I = 2.0)

0.2613

0.43

0.8253

0.965

0.5326

0.78

Z (I = 0.5)

4.36E−04

0.10

1

0.95

4.63E-04

0.92

Z (I = 1.0)

4.26E−04

0.16

1

0.99

4.74E-04

0.12

Z (I = 1.5)

0.0066

0.63

0.9984

0.98

0.0116

0.32

Z (I = 2.0)

0.0205

0.53

0.9961

0.955

0.0274

0.52

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