scholarly journals How male signaling intensity influences phonotaxis in virgin female Jamaican field crickets (Gryllus assimilis)

2014 ◽  
Author(s):  
Susan M Bertram ◽  
Karen Pacheco
Keyword(s):  
Startle Response ◽  
Acoustic Startle ◽  
Acoustic Startle Response ◽  
Virgin Female ◽  
Detection Distance ◽  
Mate Attraction ◽  
Female Mate Preference ◽  
Field Crickets ◽  
Perceptual Limits ◽  
Perceived Predation Risk

Understanding female mate preference is important for determining the strength and the direction of sexual trait evolution. Male signalling intensity is often an important predictor of mating success because higher intensity (louder) signallers are detectable at greater distances. However, if females are simultaneously more attracted to higher signalling intensities, then the potential fitness impacts of higher intensity signalling should be elevated beyond what would be expected from detection distance alone. Here we manipulated the signal intensity of cricket mate attraction signals to determine how female phonotaxis was influenced. We examined female phonotaxis using two common methodologies: spherical treadmills and open arenas. Both methodologies showed similar results, with females exhibiting highest phonotaxis towards loud (X̅+1 SD = 69 dB) mate attraction signals but showing reduced phonotaxis towards the loudest (X̅+2 SD = 77 dB) signals. Reduced phonotaxis towards supernormal stimuli may occur for several reasons including elevating the females’ perceived predation risk, invoking females’ acoustic startle response, or exceeding females’ perceptual limits.

scholarly journals How male signaling intensity influences phonotaxis in virgin female Jamaican field crickets (Gryllus assimilis)

2014 ◽  
Author(s):  
Susan M Bertram ◽  
Karen Pacheco
Keyword(s):  
Startle Response ◽  
Acoustic Startle ◽  
Acoustic Startle Response ◽  
Virgin Female ◽  
Detection Distance ◽  
Mate Attraction ◽  
Female Mate Preference ◽  
Field Crickets ◽  
Perceptual Limits ◽  
Perceived Predation Risk

Understanding female mate preference is important for determining the strength and the direction of sexual trait evolution. Male signalling intensity is often an important predictor of mating success because higher intensity (louder) signallers are detectable at greater distances. However, if females are simultaneously more attracted to higher signalling intensities, then the potential fitness impacts of higher intensity signalling should be elevated beyond what would be expected from detection distance alone. Here we manipulated the signal intensity of cricket mate attraction signals to determine how female phonotaxis was influenced. We examined female phonotaxis using two common methodologies: spherical treadmills and open arenas. Both methodologies showed similar results, with females exhibiting highest phonotaxis towards loud (X̅+1 SD = 69 dB) mate attraction signals but showing reduced phonotaxis towards the loudest (X̅+2 SD = 77 dB) signals. Reduced phonotaxis towards supernormal stimuli may occur for several reasons including elevating the females’ perceived predation risk, invoking females’ acoustic startle response, or exceeding females’ perceptual limits.

scholarly journals Habituation of the ultrasound-induced acoustic startle response in flying crickets

1991 ◽  
Vol 159 (1) ◽  
pp. 489-499 ◽  
Author(s):  
M. L. May ◽  
R. R. Hoy
Keyword(s):  
Stimulus Intensity ◽  
Startle Response ◽  
Acoustic Startle ◽  
Acoustic Startle Response ◽  
Stimulus Generalization ◽  
Field Crickets

The ultrasound-induced negative phonotactic response of tethered, flying Australian field crickets habituates to repeated stimuli. Using the magnitude of the metathoracic leg's swing during a series of ultrasonic stimuli as a measure of habituation, we show that: (1) the response declines exponentially; (2) the response recovers spontaneously; (3) repeated trials produce more rapid and stronger habituation; (4) successive stimuli presented more rapidly produce more rapid and stronger habituation; (5) a weaker stimulus intensity produces more rapid and stronger habituation; (6) the habituation shows stimulus generalization (i.e. the response is similar for different ultrasonic frequencies); (7) a novel stimulus produces dishabituation; and (8) the effect of the dishabituating stimulus habituates after repeated trials. These findings place habituation of cricket negative phonotaxis in the context described for habituation in mammals.

The Acoustic Startle Response and Disruption of Aiming. 2. Modulation by Forewarning and Preliminary Stimuli

1989 ◽  
Author(s):  
John A. Foss ◽  
James R. Ison ◽  
James P. Torre ◽  
Wansack Jr ◽  
Samuel
Keyword(s):  
Startle Response ◽  
Acoustic Startle ◽  
Acoustic Startle Response

Impaired sensorimotor gating of the acoustic startle response in the prodrome of schizophrenia

2008 ◽  
Vol 23 ◽  
pp. S70 ◽  
Author(s):  
B.B. Quednow ◽  
I. Frommann ◽  
J. Berning ◽  
K.U. Kühn ◽  
W. Maier ◽  
...  
Keyword(s):  
Startle Response ◽  
Acoustic Startle ◽  
Acoustic Startle Response ◽  
Sensorimotor Gating

Structural brain correlates of prepulse inhibition of the acoustic startle response in healthy humans

NeuroImage ◽  
2005 ◽  
Vol 26 (4) ◽  
pp. 1052-1058 ◽  
Author(s):  
Veena Kumari ◽  
Elena Antonova ◽  
Elizabeth Zachariah ◽  
Adrian Galea ◽  
Ingrid Aasen ◽  
...  
Keyword(s):  
Prepulse Inhibition ◽  
Startle Response ◽  
Acoustic Startle ◽  
Acoustic Startle Response ◽  
Healthy Humans ◽  
Brain Correlates ◽  
Structural Brain
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