Ventilatory Activity in Free-Moving Crayfish Is Indicative of Its Functional State and Perception of External Stimuli

Shuranova, Zhanna; Burmistrov, Yuri

doi:10.1007/978-3-662-04843-6_39

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…The responses of the cardiovascular and respiratory systems in crustacea to environmental and socially imposed alerting stimuli are very similar to the responses of vertebrates mediated by the autonomic nervous system (ANS) (Astley et al, 1991;Cuadras, 1979;Cuadras, 1980;McMahon, 1995;McMahon and Wilkens, 1983;Li et al, 2000;Listerman et al, 2000;Schapker et al, 2002;Shuranova and Burmistrov, 2002;Shuranova et al, 2006). It is probable that the selective pressures that promoted the development and maintenance of autonomic responses in the invertebrates are the same for vertebrates.…”

Section: Discussionmentioning

confidence: 92%

“…In addition, the responses to several types of stimuli (tactile and chemical cues) were examined for their effects on the heart and ventilatory rate of crayfish, finding a reflex inhibition in the majority of them (Larimer, 1964). More specifically, bradycardia or reversible heart arrests have been reported in crabs, lobsters and crayfish to a variety of optical and tactile stimuli (Cuadras, 1980;Cumberlidge and Uglow, 1977;Florey and Kriebel, 1974;Grober, 1990a;Grober, 1990b;Larimer and Tindel, 1966;McMahon and Wilkens, 1972;Mislin, 1966;Shuranova and Burmistrov, 2002;Uglow, 1973;Wilkens et al, 1974). Furthermore, another set of results also gathered in crustacea have shown that even though no observable behavioral responses were elicited, heart rate was measurably affected by small disturbances in the environment or by social interaction (Li et al, 2000;Listerman et al, 2000;Schapker et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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The cardiac response of the crabChasmagnathus granulatusas an index of sensory perception

Burnovicz

Oliva

Hermitte

2009

Journal of Experimental Biology

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SUMMARYWhen an animalʼs observable behavior remains unaltered, one can be misled in determining whether it is able to sense an environmental cue. By measuring an index of the internal state, additional information about perception may be obtained. We studied the cardiac response of the crab Chasmagnathus to different stimulus modalities: a light pulse, an air puff, virtual looming stimuli and a real visual danger stimulus. The first two did not trigger observable behavior, but the last two elicited a clear escape response. We examined the changes in heart rate upon sensory stimulation. Cardiac response and escape response latencies were also measured and compared during looming stimuli presentation. The cardiac parameters analyzed revealed significant changes (cardio-inhibitory responses) to all the stimuli investigated. We found a clear correlation between escape and cardiac response latencies to different looming stimuli. This study proved useful to examine the perceptual capacity independently of behavior. In addition, the correlation found between escape and cardiac responses support previous results which showed that in the face of impending danger the crab triggers several coordinated defensive reactions. The ability to escape predation or to be alerted to subtle changes in the environment in relation to autonomic control is associated with the complex ability to integrate sensory information as well as motor output to target tissues. This ʻfear, fight or flightʼ response gives support to the idea of an autonomic-like reflexive control in crustaceans.

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Section: Discussionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

The cardiac response of the crabChasmagnathus granulatusas an index of sensory perception

Burnovicz

Oliva

Hermitte

2009

Journal of Experimental Biology

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“…In addition, activity of the VPG is known to change with changes in the internal response and with social interactions or environmental changes in crustaceans (Burmistrov and Shuranova, 1996;Cuadras, 1979Cuadras, , 1980 Wilkens, 1976). As seen in the crayfish, ventilatory activity (VR) can vary depending on the internal state and changes in VR can be recorded during unexpected external stimuli (Shuranova et al, 1993;Shuranova et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Measures of Heart and Ventilatory Rates in Freely Moving Crayfish

Bierbower

Cooper

2009

JoVE

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Cardiovascular component of the context signal memory in the crab Chasmagnathus

Hermitte

Maldonado

2005

J Comp Physiol A

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Research on diverse models of memory in vertebrates demonstrates that behavioral, autonomic and endocrine responses occur together during fear conditioning. With invertebrates, no similar studies have been performed despite the extensive study of fear memory paradigms, as the context signal memory (CSM) of the crab Chasmagnathus granulatus, usually assessed by a behavioral parameter. Here, we study the crab's CSM, considering both the behavioral response and the concomitant neuroautonomic adjustments resulting in a heart rate alteration. Results show that upon the first presentation of the visual danger stimulus, a heart arrest followed by bradycardia is triggered together with a conspicuous escape response. The latter declines throughout training, while heart arrests become sporadic and bradycardia tends to deepen along the session. At test, 24 h after training, the outcome clearly contrasts with that shown at training, namely, stimulus presentation in the same context induces lower escape, no heart arrests and quick suppression of bradycardia. These results support the view that the same memory process brings about the changes in both responses. High escape, heart arrest and bradycardia are considered three parameters of the unconditioned response while minor escape, no heart arrests and bradycardia attenuation are three parameters of the learned response.

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Ventilatory Activity in Free-Moving Crayfish Is Indicative of Its Functional State and Perception of External Stimuli

Cited by 6 publications

References 9 publications

The cardiac response of the crabChasmagnathus granulatusas an index of sensory perception

The cardiac response of the crabChasmagnathus granulatusas an index of sensory perception

Measures of Heart and Ventilatory Rates in Freely Moving Crayfish

Cardiovascular component of the context signal memory in the crab Chasmagnathus

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