...Vivek Nityananda; Rohini Balakrishnan ABSTRACT Investigating the ability to entrain to auditory stimuli has been a powerful approach to uncovering the comparative rhythm abilities of different animals. While synchrony to regular simple rhythms is well documented, synchrony to complex stimuli...

... underlying the two rhythms. We found that in response to simulated jetlag with temperature cycles, late chronotypes (populations selected for predominant emergence during dusk) indeed re-entrained faster than early chronotypes (populations selected for predominant emergence during dawn) to 6 h phase delays...

... circadian behavioral and physiological rhythms . Given that these anemones inhabit shallow estuarine environments subject to tidal inputs, it was unclear whether circadian rhythmicity would persist following entrainment in natural conditions, or whether circatidal periodicity would predominate. Nematostella...

... in excretion rates compared with rates obtained from food-deprived fish. Patterns of J urea were free running with a 24 h period under conditions of continuous darkness (0:24 L:D). Exposure to an inverse photoperiod (12:12 D:L) resulted in entrainment of the J urea pattern to the new photoperiod...

... the breathing cycle period, could entrain the respiratory rhythm in a one-toone ratio. Larger differences between the stimulation interval and the period of the breathing cycle resulted in either a cyclic modification of the respiratory cycle period or entrainment patterns with coupling ratios of 2:1 or 2:3...

... occurred when maximal gill arch abduction fell during the second half of expiration or during the first half of inspiration. An increase in oscillation amplitude led to entrainment of ventilation at a one-to-one ratio with the imposed movement. After oscillation stopped an aftereffect was seen...

...GREGORY D. FUNK; IGNACIO J. VALENZUELA; GERALD N. SHOLOMENKO; JOHN D. STEEVES; WILLIAM K. MILSOM To examine the effects of locomotor frequency and respiratory drive on the incidence of locomotor-respiratory coupling (i.e. entrainment), we examined the relationship between locomotor and ventilatory...

..., entrainment, exercise hyperpnea, ventilatory control, medullary reticular formation, avian locomotion, goose. 284 G. D . FUNK AND OTHERS pattern and bipedal locomotion employing alternating (out of phase) movements of the limbs is much less obvious. Several studies using humans performing bicycle (Kay etal...