Abstract
Nine rats were placed on a restricted food diet for 14 days and nociceptive thresholds were measured by the tail-flick procedure. After 24 hr of food restriction nociceptive thresholds increased. This initial increase in nociceptive threshold was followed by a decrease in pain threshold on the second day of food restriction. Nociceptive thresholds returned to pre-deprivation levels on the remaining 11 days of food restriction. When the rats were given free access to food after 14 days of food restriction, nociceptive thresholds increased 24 hr after the reintroduction of food and decreased during the next 24 hr. Thus, the results of the present experiment demonstrate that both food restriction and a return to free feeding after 14 days of food restriction produced the same biphasic pattern of changes in nociceptive thresholds.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 499-501 |
| Number of pages | 3 |
| Journal | Physiology and Behavior |
| Volume | 33 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1984 |
| Externally published | Yes |
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Keywords
- Analgesia
- Food restriction
- Free-feeding
- Nociceptive threshold
- Pain
- Starvation
- Stress
ASJC Scopus subject areas
- Physiology (medical)
- Behavioral Neuroscience
Cite this
Nociceptive thresholds following food restriction and return to free-feeding. / Hamm, Robert J.; Lyeth, Bruce G.
In: Physiology and Behavior, Vol. 33, No. 3, 1984, p. 499-501.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nociceptive thresholds following food restriction and return to free-feeding
AU - Hamm, Robert J.
AU - Lyeth, Bruce G
PY - 1984
Y1 - 1984
N2 - Nine rats were placed on a restricted food diet for 14 days and nociceptive thresholds were measured by the tail-flick procedure. After 24 hr of food restriction nociceptive thresholds increased. This initial increase in nociceptive threshold was followed by a decrease in pain threshold on the second day of food restriction. Nociceptive thresholds returned to pre-deprivation levels on the remaining 11 days of food restriction. When the rats were given free access to food after 14 days of food restriction, nociceptive thresholds increased 24 hr after the reintroduction of food and decreased during the next 24 hr. Thus, the results of the present experiment demonstrate that both food restriction and a return to free feeding after 14 days of food restriction produced the same biphasic pattern of changes in nociceptive thresholds.
AB - Nine rats were placed on a restricted food diet for 14 days and nociceptive thresholds were measured by the tail-flick procedure. After 24 hr of food restriction nociceptive thresholds increased. This initial increase in nociceptive threshold was followed by a decrease in pain threshold on the second day of food restriction. Nociceptive thresholds returned to pre-deprivation levels on the remaining 11 days of food restriction. When the rats were given free access to food after 14 days of food restriction, nociceptive thresholds increased 24 hr after the reintroduction of food and decreased during the next 24 hr. Thus, the results of the present experiment demonstrate that both food restriction and a return to free feeding after 14 days of food restriction produced the same biphasic pattern of changes in nociceptive thresholds.
KW - Analgesia
KW - Food restriction
KW - Free-feeding
KW - Nociceptive threshold
KW - Pain
KW - Starvation
KW - Stress
UR - http://www.scopus.com/inward/record.url?scp=0021163063&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0021163063&partnerID=8YFLogxK
U2 - 10.1016/0031-9384(84)90176-8
DO - 10.1016/0031-9384(84)90176-8
M3 - Article
C2 - 6514838
AN - SCOPUS:0021163063
VL - 33
SP - 499
EP - 501
JO - Physiology and Behavior
JF - Physiology and Behavior
SN - 0031-9384
IS - 3
ER -