Trigeminally induced
startle in children with hyperekplexia.
The
startle responses of 20 larvae were tested before adding the drug.
A possible
startle reaction was monitored by recording surface electromyographic (EMG) activity from the right OOc and SCM.
Recent human volunteers studies involving seated transient perturbations have suggested that the
startle reflex forms part of the neuromuscular response to a rear-end collision.
The purpose of this study was to re-examine the processing mediating anticipation of affective stimuli by measuring the eyeblink
startle reflex and skin conductance changes to disentangle the role of stimulus aversiveness (affective modulation) and emotional arousal (attentional modulation) over anticipatory responses.
During the 3rd stimulus presentation, the degree of
startle was somewhat reduced in magnitude, the vocalization was still present but no movement of the arm occurred.
The neuroethology of acoustic
startle and escape in flying insects.
"Children with trauma but partial PTSD still [showed a] significant difference" he said, noting they could reduce their
startle response by only 40%, compared with 50%-60% in controls.
PTSD symptom severity correlated with each child's ability to modulate his
startle response, Dr.
Baseline acoustic
startle response (Habituation -ASR-1-session): Experiments 1-2
Hyperekplexia, 'stiff baby syndrome' or '
startle disease' was first described in 1958 by Kirstein and Silfverskiold (1).