3 monkeys impaired on delayed response and delayed alternation after midlateral frontal lesions, 3 monkeys unimpaired on these tasks after control lesions, and 3 unoperated monkeys were tested on spatial delayed response (with direct baiting) and spatial delayed alternation following 2, 26, and 50 hr. of food deprivation. Increased deprivation improved delayed response performance by all groups...

This study examined the effect of anticipated food deprivation on intake in restrained and unrestrained eaters. Participants were randomly assigned to a diet condition, in which they expected to diet for a week, or to a control (no-diet) condition. Immediately after being assigned to a condition, participants completed a taste-rating task in which food consumption was measured. Restrained eater...

Young of altricial birds use conspicuous displays to solicit food from their parents. There is experimental evidence that the intensity of these displays is correlated with the level of food deprivation of young, and that parents respond to increased levels of solicitation by increasing the rate of food delivery to the nest. Game-theoretical models based on the handicap principle show that, whe...

Six adult female albino rats were subjected to operations known to increase the frequency of wheel-running. Operations included limited access to wheel, food deprivation, and protracted maintenance on a 24-hr feeding schedule. A distributional analysis of response duration, burst duration, and inter-burst interval showed that the increased frequency in all cases arose mainly from a shortening o...

Animals can insure themselves against the risk of starvation associated with unpredictable food availability by storing energy reserves or gathering information about alternative food sources. The former strategy carries costs in terms of mass-dependent predation risk, while the latter trades off against foraging for food; both trade-offs may be influenced by an individual's developmental histo...

As cost of living rises and people’s wages / salaries do not cover their basic food and dietary needs, interest in parttime farming has risen. Part-time farming activities are being practiced by different people as a food security strategy from vulnerable households. But these part-time farms have had limited success in providing food/nutrition security, increasing incomes and improving well-be...

the effect of blood glucose level changes induced by 24h food deprivation and intraperitoneal (ip) injection of insulin (2iu/kg) and glucose (2gr/kg) was investigated on the pain induced by intraplantar (ipl) injection of formalin (20ml , 5%) in mice. blood glucose level changes were determined by blood sampling from the apex of the tail of mice. ip injection of insulin and 24h food deprivation...

Homeothermic animals regulate body temperature (T(b)) by using both autonomic and behavioral mechanisms. In the latter process, animals seek out cooler or warmer places when they are exposed to excessively hot or cold environments. Thermoregulation is affected by the state of energy reserves in the body. In the present study, we examine the effects of 4-day food deprivation on circadian changes...

Neural information processing entails a high energetic cost, but its maintenance is crucial for animal survival. However, the brain's energy conservation strategies are incompletely understood. Employing functional brain-wide imaging and quantitative behavioral assays, we describe a neuronal strategy in Caenorhabditis elegans that balances energy availability and expenditure. Upon acute food de...