Neuropeptides and amphibian prey-catching behavior

Carr, James A.; Brown, Cary L.; Mansouri, Roshi; Venkatesan, Srividhya

doi:10.1016/s1096-4959(01)00545-0

Cited by 53 publications

(35 citation statements)

References 98 publications

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“…CRF decreases ingestive behaviors in Wsh (reviewed in Bernier and Peter (2001); VolkoV et al (2005)), amphibians , birds (Denbow et al, 1999;Furuse et al, 1997;Ohgushi et al, 2001;Richardson et al, 2000;Zhang et al, 2001a,b), and mammals (reviewed in (Dunn and Berridge, 1990)). In amphibians, this has been extended to include prey-catching behaviors (Carr et al, 2002). Although it has not been extensively studied in nonmammalian vertebrates, CRF decreases reproductive behaviors in wild-caught female white-crowned sparrows, an eVect that parallels the eVects of CRF on reproductive behaviors in rodents (Sirinathsinghji, 1985(Sirinathsinghji, , 1987.…”

Section: Behavioral Responses To Administration Of Crfmentioning

confidence: 99%

Regulation of behavioral responses by corticotropin-releasing factor

Lowry

Moore

2006

General and Comparative Endocrinology

137

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Section: Behavioral Responses To Administration Of Crfmentioning

confidence: 99%

Regulation of behavioral responses by corticotropin-releasing factor

Lowry

Moore

2006

General and Comparative Endocrinology

137

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“…During the mating season, however, the same sensory stimulus now evokes exploration in the toad since the same stimulus may now represent a potential mate. The dominance of cryptic behavior over exploration is thus highly plastic and dependent on the hormonal and behavioral state of the animal (Carr et al, 2002).…”

Section: Feeding As a Dominant Behavior In Sanguivorous Leechesmentioning

confidence: 99%

“…Because animals typically express a single behavior at a time (Sherrington, 1906), they must choose which stimulus to pay attention to and which to ignore. This paradigm has been used extensively to probe the priority that an animal places on a specific behavior (Carr et al, 2002;Edwards, 1991;Jing and Gillette, 1995;Misell et al, 1998;Norekian and Satterlie, 1996). Such studies can establish behavioral hierarchies by presenting an animal with two stimuli simultaneously that induce distinct behaviors when presented alone.…”

Section: Introductionmentioning

confidence: 99%

Behavioral choice across leech species: chacun à son goût

Gaudry

Ruiz

Huang

et al. 2010

Journal of Experimental Biology

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SUMMARYAt any one time, animals are simultaneously bombarded with many sensory stimuli, but they typically choose to respond to only a few of them. We used multidimensional analysis to determine the behavioral responses of six species of leeches to stimulation, as the responses are affected by species identity, diet, behavioral state and stimulus location. Our results show that each of the species tested while not feeding displayed remarkably similar behaviors in response to tactile stimulation of the surface of the body. When not feeding, stimulus location was the most reliable factor in determining behavioral response. While feeding, the three sanguivorous (bloodsucking) species tested ignored stimulation, whereas the three carnivorous leeches abandoned feeding in favor of locomotory responses, regardless of phylogenetic relationships. In the sanguivorous leeches, feeding abolished all mechanically elicited responses and mechanical stimulation in turn had no effect on feeding. We also show that the behavioral hierarchy of leeches was fixed and unchanging even in species that can consume both a carnivorous and a sanguivorous diet.

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“…In addition, CRH-enhanced locomotion depends on numerous ethologically relevant and species-specific contextual factors. These include the prevailing physiological and behavioral state of the animal, as well as its interactions with external cues and stressors imposed by its environment including conspecifics, social hierarchies, and predator-prey relationships (Carpenter et al, 2009; Carr et al, 2002; Dunn and Berridge, 1990; Lowry and Moore, 2006; Strome et al, 2002). Environmental factors, such as an animal’s housing conditions and the novelty of the environment in which the experimental stressor occurs or CRH is administered, also have been shown to differentially effect locomotor and arousal-related behaviors in a variety of vertebrates including fish, amphibians, rodents, and non-human primates (Britton et al, 1982; Clements and Schreck 2004; Lowry and Moore, 2006; Strome et al, 2002; Sutton et al, 1982).…”

Section: Introductionmentioning

confidence: 99%

Brainstem neuronal and behavioral activation by corticotropin-releasing hormone depend on the behavioral state of the animal

Hubbard

Rose

2012

Hormones and Behavior

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Central administration of corticotropin-releasing hormone (CRH) is known to enhance locomotion across a wide range of vertebrates, including the roughskin newt, Taricha granulosa. The present study aimed to identify the CRH effects on locomotor-controlling medullary neurons that underlie the peptide’s behavioral stimulating actions. Single neurons were recorded from the rostral medullary reticular formation before and after intraventricular infusion of CRH in freely behaving newts and newts paralyzed with a myoneural blocking agent. In behaving newts, most medullary neurons showed increased firing 3-23 min after CRH infusion. Decreases in firing were less common. Of particular importance was the finding that in behaving newts, medullary neurons showed a cyclic firing pattern that was strongly associated with an increase in the incidence of walking bouts, an effect blocked by pretreatment with the CRH antagonist, alpha-helical CRH and not seen following vehicle administration. In contrast, the majority of medullary neurons sampled in immobilized newts lacked temporal cyclicity in their firing patterns following intraventricular infusion of CRH. That is, there was no evidence for a fictive locomotor activity pattern. Our results indicate that the actual expression of locomotion is a critical factor in regulating the behavior-activating effects of CRH and underscore the importance of using an awake, unrestrained animal for analysis of a hormone’s neurobehavioral actions.

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Neuropeptides and amphibian prey-catching behavior

Cited by 53 publications

References 98 publications

Regulation of behavioral responses by corticotropin-releasing factor

Regulation of behavioral responses by corticotropin-releasing factor

Behavioral choice across leech species: chacun à son goût

Brainstem neuronal and behavioral activation by corticotropin-releasing hormone depend on the behavioral state of the animal

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