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Ten successive experiments were carried out in 10 volunteers to compare the physiological properties of R2 and R3 components of the blink reflex. The electrical activation threshold of the R3 component was found to be significantly higher than that of the R2 response and was more susceptible to anaesthetic blocking of the peripheral afferents. This result suggests that the R3 component is induced by the activation of a different population of peripheral afferents from the R2 component. A recovery cycle study performed using a double stimulus showed that R3 is inhibited to a greater extent and for a longer time than R2. The temporal relationship of R3 to the voluntarily produced blink demonstrates that R3 is not a voluntary response to electrical stimulation. In conclusion, these experiments support the existence of an independent R3 component and its relationship with the activation of small diameter and higher threshold afferent fibres, perhaps nociceptive ones.
B Rossi, and
R Risaliti, and
A Rossi
April 2001,
Pain,
B Rossi, and
R Risaliti, and
A Rossi
April 1993,
Italian journal of neurological sciences,
B Rossi, and
R Risaliti, and
A Rossi
August 1996,
Electroencephalography and clinical neurophysiology,
B Rossi, and
R Risaliti, and
A Rossi
January 1986,
European neurology,
B Rossi, and
R Risaliti, and
A Rossi
January 1994,
Functional neurology,
B Rossi, and
R Risaliti, and
A Rossi
October 1960,
Experientia,
B Rossi, and
R Risaliti, and
A Rossi
April 2002,
International journal of psychophysiology : official journal of the International Organization of Psychophysiology,
B Rossi, and
R Risaliti, and
A Rossi
December 1997,
Muscle & nerve,
B Rossi, and
R Risaliti, and
A Rossi
January 2009,
Pain,
B Rossi, and
R Risaliti, and
A Rossi
January 1978,
Electromyography and clinical neurophysiology,
