Behavioral and Electrophysiological Studies on Chemoreception in<i>Aplysia</i>

Jahan‐Parwar, Behrus

doi:10.1093/icb/12.3.525

Cited by 94 publications

(38 citation statements)

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“…Correspondingly, the receptive fields of tail sensory neurons found in the pleural ganglia are limited to the ipsilateral tail surface (Walters et al 1983b). Innervation of the anterior tentacles and the rhinophores of Aplysia by the cerebral nerves also show an ipsilateral organization; projections from the left n2, n3, n4, and n6 cerebral nerves innervate the left anterior tentacle, whereas the left n1 and n5 cerebral nerves innervate the left rhinophore and vice versa for the right side (Jahan-Parwar 1972).…”

Section: Organization Of Sensory Inputmentioning

confidence: 99%

Neural Circuit of Tail-Elicited Siphon Withdrawal inAplysia.I. Differential Lateralization of Sensitization and Dishabituation

Bristol

Sutton

Carew

2004

Journal of Neurophysiology

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. The tail-elicited siphon withdrawal reflex (TSW) has been a useful preparation in which to study learning and memory in Aplysia. However, comparatively little is known about the neural circuitry that translates tail sensory input (via the P9 nerves to the pleural ganglion) to final reflex output by siphon motor neurons (MNs) in the abdominal ganglion. To address this question, we examined the functional architecture of the TSW circuit by selectively severing nerves of semi-intact preparations and recording either tail-evoked responses in the siphon MNs or measuring siphon withdrawal responses directly. We found that the neural circuit underlying TSW is functionally lateralized. We next tested whether the expression of learning in the TSW reflects the underlying circuit architecture and shows sidespecificity. We tested behavioral and physiological correlates of three forms of learning: sensitization, habituation, and dishabituation. Consistent with the circuit architecture, we found that sensitization and habituation of TSW are expressed in a side-specific manner. Unexpectedly, we found that dishabituation was expressed bilaterally, suggesting that a modulatory pathway bridges the two (ipsilateral) input pathways of the circuit, but this path is only revealed for a specific form of learning, dishabituation. These results suggest that the effects of a descending modulatory signal are differentially "gated" during sensitization and dishabituation.

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Section: Organization Of Sensory Inputmentioning

confidence: 99%

Neural Circuit of Tail-Elicited Siphon Withdrawal inAplysia.I. Differential Lateralization of Sensitization and Dishabituation

Bristol

Sutton

Carew

2004

Journal of Neurophysiology

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“…In Aplysia, the rhinophores, tentacles, and oral veil are chemosensory organs (Preston and Lee, 1973;Jahan-Parwar, 1972, 1975. All of the chemosensory nerves of these organs enter the cerebral ganglion (Jahan-Parwar, 1972;Audesirk and Audesirk, 1977;Chase, 1979).…”

Section: Afferent and Efferent Neural Pathways For Chemoreceptor Organsmentioning

confidence: 99%

Amino Acid-induced Reflexes and Their Neural Pathways in an Opisthobranch Mollusc Pleurobranchaea japonica

et al. 2001

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“…[9][10][11][12][13][14][15][16][17][18]. The activities of all basic amino acids tested were higher than that of dummy (Nos.…”

Section: Attractionmentioning

confidence: 99%

Studies on the feeding attractants for fishes and shells. XII. Feeding attraction activities of proteins, amino acids, lipids and nitrogenous bases for abalone.

勝彦¹,

幸夫²

1985

NIPPON SUISAN GAKKAISHI

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Behavioral and Electrophysiological Studies on Chemoreception inAplysia

Cited by 94 publications

References 0 publications

Neural Circuit of Tail-Elicited Siphon Withdrawal inAplysia.I. Differential Lateralization of Sensitization and Dishabituation

Neural Circuit of Tail-Elicited Siphon Withdrawal inAplysia.I. Differential Lateralization of Sensitization and Dishabituation

Amino Acid-induced Reflexes and Their Neural Pathways in an Opisthobranch Mollusc Pleurobranchaea japonica

Studies on the feeding attractants for fishes and shells. XII. Feeding attraction activities of proteins, amino acids, lipids and nitrogenous bases for abalone.

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