A subsequent Student t-test revealed that fluoxetine decreased the startle reflex in adults (T 1,18) = 2.138, p<0.05) but not in adolescents (T 1,18) = 0.731, NS).
Although saccades towards acoustic targets are scientifically less well investigated than saccades towards visual targets, a recent study delineated an "acoustic-evoked ocular grasp reflex" in adults [ 17].
In a binge paradigm, adolescent rats develop a higher tolerance to EtOH-induced loss of righting reflex than adults, and this tolerance is maintained in adulthood [ 50, 52].
These data suggest the existence of the Hering-Breuer inflation/deflation reflex in adults under standard clinical conditions; this reflex, produced by increased stretch receptor activity, leads to a prolongation of expiration.
Adolescent rats were shown significantly shorter sleeping time and higher blood alcohol levels after regaining reflex than adult rats.
Brief inhibition of MMPs after induction of a photothrombotic lesion in S1 rescued experience-enabled enhancements of both the spatial frequency ( A ) and contrast sensitivity ( B ) thresholds of the optomotor reflex in adult mice.
In adult humans, the inflation/deflation reflex has been found to become apparent if the inflation volume exceeds a critical threshold of about 1 l [ 3, 9, 11].
To determine, using systematic review of the biomedical literature, whether pacing reduces risk of recurrent syncope and relevant clinical outcomes among adult patients with reflex-mediated syncope.
This was partly confirmed in another study of adolescents and adults with JHS where the reflex in the knee extensors was absent in 47% of 15 patients, compared with a healthy control group in which this reflex was present in all subjects [ 52].
In addition, primitive reflexes reappear in adults under certain conditions, like brain damage [10].
