Heterosynaptic Facilitation of Tail Sensory Neuron Synaptic Transmission during Habituation in Tail-Induced Tail and Siphon Withdrawal Reflexes ofAplysia
نویسندگان
چکیده
منابع مشابه
Heterosynaptic facilitation of tail sensory neuron synaptic transmission during habituation in tail-induced tail and siphon withdrawal reflexes of Aplysia.
In cellular studies of habituation, such as in the gill and siphon withdrawal reflex to tactile stimulation of the siphon of Aplysia, a mechanism that has emerged as an explanation for response decrement during habituation is homosynaptic depression at sensory neurons mediating the behavioral response. We have examined the contribution of homosynaptic depression to habituation in sensory neuron...
متن کاملEnhanced reflexive withdrawal of the tail and facilitation of synaptic connections between sensory neurons and motor neurons mediating the tail-withdrawal reflex in
Facilitation of synaptic connections between sensory neurons and motor neurons mediating the tailwithdrawal reflex in Aplysia is produced by sensitizing stimuli. These effects can be mimicked by perfusing the pleural and pedal ganglia of a semi-intact preparation with serotonin (5-HT). In addition to the synaptic facilitation, 5-HT produces a depolarization associated with an increase in input ...
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The marine mollusc Aplysia has proven very useful for a mechanistic analysis of behavioral modification. Among the stimuli used to modify the behavior of Aplysia, a noxious stimulus, tail shock, is one of the most effective. In addition to the extensively analyzed facilitatory effects of tail shock, recent work has demonstrated that it also produces marked transient inhibition in reflex respons...
متن کاملSite specificity of short-term and long-term habituation in the tail-elicited siphon withdrawal reflex of Aplysia.
The study of habituation in animals with relatively simple nervous systems has contributed significantly to the understanding of mechanisms underlying learning and memory. Using the tail-elicited siphon withdrawal reflex of Aplysia, which is mediated in part by bilaterally symmetrical clusters of tail sensory neurons, we found that both short-term and long-term habituation can be restricted lat...
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The relevance of putative contributors to age-related memory loss are poorly understood. The tail withdrawal circuit of the sea hare, a straightforward neural model, was used to investigate the aging characteristics of rudimentary learning. The simplicity of this neuronal circuit permits attribution of declines in the function of specific neurons to aging declines. Memory was impaired in advanc...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 1996
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.16-16-04933.1996