Can goats learn about foods through conditioned food aversions
and preferences when multiple food options are simultaneously available?
Conditioned taste aversions
based on running or swimming.
In the present experimental series we are going to focus on context-switch effects after simple acquisition of taste aversion
learning in rats.
Conditioned food aversion
can be used in ruminants to avoid eating poisonous plants (RALPHS AND OLSEN, 1990; PFISTER et al.
In four conditioned taste aversion
experiments with rats as subjects, the effects of extinguished or pre-exposed flavors on retardation and summation tests was compared.
The exploration of taste aversions
has expanded to include efforts to ward off wild predators from livestock without killing the carnivores, to chart animals' social communication about food aversions
, to explore hormonal sensitivities that may push some teenage girls toward self-starvation and anorexia, and to identify brain structures essential for tagging selected flavors as forbidden.
Social facilitation has been a limiting factor in the usefulness of maintaining aversions
to certain toxic plants (RALPHS & OLSEN, 1992; RALPHS & PROVENZA, 1999).
Establishment of conditioned taste aversions
with a 24-hour CS-US interval.
But her research also indicates that not only do the learned aversions
to chemotherapy-associated foods exist but "that tumor growth may also suppress appetite indirectly by producing chronic symptoms which act as .
1982) reported that the strength of the PPE appears to be related to the intensity of the demonstrator's illness: Observers showed stronger taste aversions
after interacting with demonstrators given higher dosages of the emetic lithium chloride (LiCI).
In contrast to studies that report a failure to obtain taste aversions
with anesthetics, other investigations have reported that administration of anesthetics can induce weak aversions
to novel flavors.
After this treatment, a change of the taste-context combinations reduced the taste aversions
Explicitly unpaired controls were used because we planned to compare specific experimental groups with respective controls to determine if, among other things, aversions
were influenced by nonassociative factors such as pseudoconditioning.
1987; 1982), then it is predicted that lead-exposed animals will develop stronger taste aversions
than non-lead-exposed animals because of a more intense reaction to the unconditioned stimulus (US).
The initially surprising finding of Lett and Grant (1996) that voluntary running in an activity wheel works as an effective agent to establish conditioned taste aversion
(CTA) has now been well confirmed by subsequent studies (see Boakes & Nakajima, 2009, for a review).