Abstract:
:Finicky feeding refers to an animal's tendency to become more particular in accepting and choosing food as satiation is approached. We tested the hypothesis that finickiness in the blowfly is related to the balance between internal inhibition, generated by a full crop, and external sensory information, generated by oral chemoreceptor contact with food. Response thresholds to sucrose and sucrose/quinine mixtures were determined for blowflies at two different levels of food deprivation. The deterrent effect of a given quinine concentration on feeding depends upon the concentration of sucrose in the mixture and the animal's level of deprivation. Transection of the recurrent nerve that normally signals fullness of the crop releases central inhibition and leads satiated flies to accept higher concentrations of quinine mixed with sucrose than controls. The results of this study suggest that the central nervous system's set point for responding to sensory excitation by sugar, rather than sensitivity to quinine, peripheral or central, determines gustatory finickiness in the blowfly.
journal_name
Behav Neuroscijournal_title
Behavioral neuroscienceauthors
Moss CF,Dethier VGdoi
10.1037//0735-7044.97.4.541subject
Has Abstractpub_date
1983-08-01 00:00:00pages
541-8issue
4eissn
0735-7044issn
1939-0084journal_volume
97pub_type
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pub_type: 杂志文章
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更新日期:1996-06-01 00:00:00
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