Assessment of Startle Response and Its Prepulse Inhibition Using Posturography: Pilot Study.
Purpose. The aim of this study was to evaluate the possibility of using static posturography in the assessment of sensorimotor gating. Subjects and Methods. Fourteen subjects took part in the experiment. The inhibitory mechanisms of startle reflex were used as the measure of sensorimotor gating. It was evoked by a strong acoustic stimulus (106 dB SPL, 40 ms) which was preceded by the weaker similar signal (80 dB SPL, 20 ms). A stabilographic platform was used to measure sensorimotor gating. Results. Results of static posturography show that the postural sway caused by the reaction to a strong acoustic stimulus is significantly smaller when this stimulus is preceded by the signal of lower intensity (prepulse). Such assessment is only possible in eyes open conditions. Conclusions. Static posturography can be simple and effective method used for diagnosis of sensorimotor gating in humans.
The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland.
Jacek
J
Polechoński
The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland.
Grzegorz
G
Juras
The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland.
Kajetan
K
Słomka
The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland; Nencki Institute of Experimental Biology, Warsaw, Poland.
Janusz
J
Błaszczyk
The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland.
Andrzej
A
Małecki
The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland.
Agnieszka
A
Nawrocka
D000161:Acoustic Stimulation / Q000379:methods; D000328:Adult; D004558:Electric Stimulation / Q000379:methods; D004576:Electromyography / Q000379:methods; D005072:Evoked Potentials, Auditory / Q000502:physiology; D005123:Eye / Q000503:physiopathology; D006801:Humans; D008297:Male; D010865:Pilot Projects; D011930:Reaction Time / Q000502:physiology*; D013216:Reflex, Startle / Q000502:physiology*; D055139:Sensory Gating / Q000502:physiology*; D055815:Young Adult