Muscle

Response

PPI

(0- vs. 360-ms SOA)

Refractoriness

(60- vs. 360-ms SOA)

Blink

Magnitude^b

6.55^**

6.23^**

Masseter^b

N19

P30

N70

P100

<1

<1

2.30^*

1.87

<1

<1

2.37^*

3.62^**

Post-auricularis^b

N19

P30

N120

<1

<1

1.29

<1

<1

1.80

Medial frontalis^b

N19

P30

N40

P90

2.43^*

<1

5.79^**

3.28^**

<1

1.03

3.66^**

3.35^**