Electrical stimulation of a variety of nerves towards the brain results in movements of the neck of the snail similar to those associated with the withdrawal response of the intact animal.
The columellar and cervical nerves mediate most of the movements being measured.
Repetition of the stimuli results in a decline in response amplitude which is complicated by a superimposed incremental process which is itself subject to a decremental process as stimuli are repeated.
As stimuli are repeated the response latency increases.
Consecutive stimulation of pairs of nerves indicates that the response decrement is specific to the nerve being stimulated.
The involvement of the pleuro-pedal connectives in the response has been demonstrated both in a semi-intact preparation stimulated electrically and in a free-roaming animal treated surgically and stimulated visually.
Visual stimuli associated with the withdrawal response are detected by photoreceptors on the head and in the mantle.
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JOURNAL ARTICLE| 01 June 1975
The Withdrawal Response of a Freshwater Snail (Lymnaea Stagnalis L.)
1 School of Biological and Environmental Studies, The New University of Ulster, Coleraine, Northern Ireland
Revision Received: 13 Dec 1974
Online Issn: 1477-9145
Print Issn: 0022-0949
© 1975 by Company of Biologists
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ANTHONY COOK; The Withdrawal Response of a Freshwater Snail (Lymnaea Stagnalis L.). J Exp Biol 1 June 1975; 62 (3): 783–796. doi: https://doi.org/10.1242/jeb.62.3.783
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