Non-undulatory locomotion in the lamprey

Ps, Archambault; Tg, Deliagina; Gn, Orlovsky

doi:10.1097/00001756-200107030-00009

Cited by 13 publications

(21 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8B). Photic stimulation to the tail of freely moving lamprey or tactile stimulation to the tail of lamprey in a maze (Archambault et al 2001) induces a similar motor pattern. Such stimuli induce lateral rhythmical oscillations (1-2 Hz) of the head, which can be interpreted as searching behavior (Archambault et al 2001) or struggling movements (Kasicki and Grillner 1986).…”

Section: Rhythmic Coordinated Trunk and Eye Movements In Antiphase: Tmentioning

confidence: 99%

Tectal Control of Locomotion, Steering, and Eye Movements in Lamprey

Saitoh

Ménard

Grillner

2007

Journal of Neurophysiology

101

View full text Add to dashboard Cite

Saitoh K, Ménard A, Grillner S. Tectal control of locomotion, steering, and eye movements in lamprey. J Neurophysiol 97: 3093-3108, 2007. First published February 15, 2007 doi:10.1152/jn.00639.2006. The intrinsic function of the brain stem-spinal cord networks eliciting the locomotor synergy is well described in the lamprey-a vertebrate model system. This study addresses the role of tectum in integrating eye, body orientation, and locomotor movements as in steering and goal-directed behavior. Electrical stimuli were applied to different areas within the optic tectum in head-restrained semi-intact lampreys (n ϭ 40). Motions of the eyes and body were recorded simultaneously (videotaped). Brief pulse trains (Ͻ0.5 s) elicited only eye movements, but with longer stimuli (Ͼ0.5 s) lateral bending movements of the body (orientation movements) were added, and with even longer stimuli locomotor movements were initiated. Depending on the tectal area stimulated, four characteristic response patterns were observed. In a lateral area conjugate horizontal eye movements combined with lateral bending movements of the body and locomotor movements were elicited, depending on stimulus duration. The amplitude of the eye movement and bending movements was site specific within this region. In a rostromedial area, bilateral downward vertical eye movements occurred. In a caudomedial tectal area, largeamplitude undulatory body movements akin to struggling behavior were elicited, combined with large-amplitude eye movements that were antiphasic to the body movements. The alternating eye movements were not dependent on vestibuloocular reflexes. Finally, in a caudolateral area locomotor movements without eye or bending movements could be elicited. These results show that tectum can provide integrated motor responses of eye, body orientation, and locomotion of the type that would be required in goal-directed locomotion.

show abstract

Section: Rhythmic Coordinated Trunk and Eye Movements In Antiphase: Tmentioning

confidence: 99%

Tectal Control of Locomotion, Steering, and Eye Movements in Lamprey

Saitoh

Ménard

Grillner

2007

Journal of Neurophysiology

101

View full text Add to dashboard Cite

show abstract

“…This animal can display different forms of locomotion, including forward swimming (FS) and backward swimming (BS), as well as crawling (Archambault et al 2001). FS in the lamprey is due to lateral body undulations propagating in the rostro-caudal direction (Grillner and Kashin 1976).…”

mentioning

confidence: 99%

Reticulospinal neurons controlling forward and backward swimming in the lamprey

Zelenin

2011

Journal of Neurophysiology

View full text Add to dashboard Cite

Zelenin PV. Reticulospinal neurons controlling forward and backward swimming in the lamprey. J Neurophysiol 105: 1361-1371, 2011. First published January, 19, 2011 doi:10.1152 doi:10. /jn.00887.2010brates are capable of two forms of locomotion, forward and backward, strongly differing in the patterns of motor coordination. Basic mechanisms generating these patterns are located in the spinal cord; they are activated and regulated by supraspinal commands. In the lamprey, these commands are transmitted by reticulospinal (RS) neurons. The aim of this study was to reveal groups of RS neurons controlling different aspects of forward (FS) and backward (BS) swimming in the lamprey. Activity of individual larger RS neurons in intact lampreys was recorded during FS and BS by chronically implanted electrodes. It was found that among the neurons activated during locomotion, 27% were active only during FS, 3% only during BS, and 70% during both FS and BS. In a portion of RS neurons, their mean firing frequency was correlated with frequency of body undulations during FS (8%), during BS (34%), or during both FS and BS (22%), suggesting their involvement in control of locomotion intensity. RS activity was phasically modulated by the locomotor rhythm during FS (20% of neurons), during BS (29%), or during both FS and BS (16%). The majority of RS neurons responding to vestibular stimulation (and presumably involved in control of body orientation) were active mainly during FS. This explains the absence of stabilization of the body orientation observed during BS. We discuss possible functions of different groups of RS neurons, i.e., activation of the spinal locomotor CPG, inversion of the direction of propagation of locomotor waves, and postural control. supraspinal commands; reticulospinal system; backward locomotion; forward locomotion; posture

show abstract

“…The 'gliding' ability of hagfishes appears similar to a type of nonundulatory 'crawling' locomotion exhibited by lampreys when moving through tight spaces, as well as by snakes (Archambault et al, 2001; see Movie 2 for a demonstration of gliding). In contrast to swimming, crawling is achieved via a solitary wave of right and left muscle contractions.…”

Section: Behaviormentioning

confidence: 80%

“…In contrast to swimming, crawling is achieved via a solitary wave of right and left muscle contractions. This muscle activity appears to be localized to the part of the body near the bend, and propagates caudally, allowing for forward motion (Archambault et al, 2001). Further investigation is needed to determine whether gliding in the hagfish is driven by the same mechanism as crawling in the lamprey.…”

Section: Behaviormentioning

confidence: 99%

Hagfish Houdinis: biomechanics and behavior of squeezing through small openings

Freedman

Fudge

2017

Journal of Experimental Biology

View full text Add to dashboard Cite

Hagfishes are able to squeeze through small openings to gain entry to crevices, burrows, hagfish traps and carcasses, but little is known about how they do this, or what the limits of this ability are. The purpose of this study was to describe this ability, and to investigate possible mechanisms by which it is accomplished. We investigated the hypothesis that the passive movement of blood within a hagfish's flaccid subcutaneous sinus allows it to squeeze through narrow apertures that it would not be able to if it were turgid. To test this hypothesis, we analyzed videos of Atlantic hagfish (Myxine glutinosa) and Pacific hagfish (Eptatretus stoutii) moving through narrow apertures in the lab. We measured changes in body width as the animals moved through these openings and documented the behaviors associated with this ability. We found that hagfishes are able to pass through narrow slits that are less than one half the width of their bodies. Our results are consistent with the idea that a flaccid subcutaneous sinus allows hagfish to squeeze through narrow apertures by facilitating a rapid redistribution of venous blood. In addition, we describe nine distinct behaviors associated with this ability, including a form of non-undulatory locomotion also seen in snakes and lampreys. Our results illuminate a behavior that may be a critical component of the hagfish niche, as a result of its likely importance in feeding and avoiding predators.

show abstract

Non-undulatory locomotion in the lamprey

Cited by 13 publications

References 13 publications

Tectal Control of Locomotion, Steering, and Eye Movements in Lamprey

Tectal Control of Locomotion, Steering, and Eye Movements in Lamprey

Reticulospinal neurons controlling forward and backward swimming in the lamprey

Hagfish Houdinis: biomechanics and behavior of squeezing through small openings

Contact Info

Product

Resources

About