1986
DOI: 10.1037/0735-7044.100.4.544
|View full text |Cite
|
Sign up to set email alerts
|

Electromyographic analysis of the ingestion and rejection of sapid stimuli in the rat.

Abstract: Previous behavior studies (Grill & Norgren, 1978) demonstrated that gustatory stimuli produce stereotyped orofacial movements that constitute the observable concomitants of ingestion and rejection. For further clarification of the relation between these orofacial movements (the buccal phase of ingestion) and the act of swallowing (the pharyngeal phase), electromyographic responses to intraoral sapid stimulation were recorded from a subset of orofacial and pharyngeal muscles in a freely moving chronic preparati… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

17
122
0

Year Published

2000
2000
2015
2015

Publication Types

Select...
6
2

Relationship

1
7

Authors

Journals

citations
Cited by 155 publications
(139 citation statements)
references
References 43 publications
(89 reference statements)
17
122
0
Order By: Relevance
“…The data support our contention that GC performs a feat known as multiplexing, processing first somatosensory, then chemosensory, and finally palatability-related aspects of the stimulus, in the time between taste administration and the appearance of palatability-specific behavioral responses (Travers and Norgren, 1986). Our previous work provided evidence of temporally specific information in GC codes (Katz et al, 2001a), and demonstrated that palatability-related attentional shifts preferentially change epochs of the GC responses that code palatability .…”
Section: Discussionsupporting
confidence: 86%
See 1 more Smart Citation
“…The data support our contention that GC performs a feat known as multiplexing, processing first somatosensory, then chemosensory, and finally palatability-related aspects of the stimulus, in the time between taste administration and the appearance of palatability-specific behavioral responses (Travers and Norgren, 1986). Our previous work provided evidence of temporally specific information in GC codes (Katz et al, 2001a), and demonstrated that palatability-related attentional shifts preferentially change epochs of the GC responses that code palatability .…”
Section: Discussionsupporting
confidence: 86%
“…Finally, the observed plasticity is appropriately timed to precede, not be preceded by, tasterelated behaviors in this preparation (Travers and Norgren, 1986). CTA-related plasticity almost assuredly represents changes in palatability processing in multiplexed GC temporal codes.…”
Section: Discussionmentioning
confidence: 79%
“…Although rats are incapable of vomiting, they display characteristic gaping reactions (which may reflect nausea) when exposed to a flavoured solution (see Parker 2003;Limebeer et al 2006) previously paired with lithiuminduced nausea. In fact, this gaping reaction in the rat requires the same orofacial musculature as that required for vomiting in other species (Travers and Norgren 1986). Only drugs that produce emesis in species capable of vomiting produce conditioned gaping in rats, although many nonemetic drugs produce conditioned taste avoidance (see Parker 2003 for review).…”
Section: Introductionmentioning
confidence: 99%
“…The end of the bout was defined as a pause in oromotor responding Ն0.5 s. These measures allowed a detailed assessment of the motor characteristics of the responses without the necessity of categorizing them. Subsequently a more specific analysis of responses representing ingestion (positive taste reactivity) and rejection (negative taste reactivity) was performed by consulting the marked video records in conjunction with the rate and amplitude measures afforded by the EMG; i.e., licks are associated with low-amplitude, 6 -7 Hz jaw openings; gapes with larger-amplitude, slower (3-4 Hz) triangular jaw openings as previously described (19,68). In these analyses, we focused on lick bout size (the number of licks), gape bout size (number of gapes), and a relative measure of these two behaviors (duration of gaping/total duration of first bout; G/T), to better assess any sensory-related effects.…”
Section: Methodsmentioning
confidence: 99%
“…Experiments using the taste reactivity test support this conclusion. Morphine lengthens (11), and naltrexone shortens (52), the length of licking bouts elicited by sucrose, a measure positively correlated with stimulus palatability (15,68), whereas systemic morphine reduces the number of aversive reactions (i.e., gapes) to the bitter stimulus, quinine (52).…”
mentioning
confidence: 99%