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Articles 1 - 8 of 8
Full-Text Articles in Psychology
Aquatic Feeding By Moose: Seasonal Variation In Relation To Plant Chemical Composition And Use Of Mineral Licks, D. Fraser, B. K. Thompson, D. Arthur
Aquatic Feeding By Moose: Seasonal Variation In Relation To Plant Chemical Composition And Use Of Mineral Licks, D. Fraser, B. K. Thompson, D. Arthur
Feeding Behavior Collection
Activity of moose (Alces alces) was studied at aquatic feeding areas and at natural, sodium-rich licks during four periods covering late May to early September. Aquatic feeding increased from period 1 (late May and early June) to period 2 (late June and early July) and had declined by late July. Major activity at mineral licks occurred earlier in the season than aquatic feeding, especially for males. Chemical composition of aquatic plants showed no seasonal changes corresponding to the peak of aquatic feeding in period 2, although the sodium content of some species declined in period 3. We suggest that moose …
The Effects Of Pentazocine And Tripelennamine On Analgesia And Locomotion, James Philip Cleary
The Effects Of Pentazocine And Tripelennamine On Analgesia And Locomotion, James Philip Cleary
Dissertations
The effects of pentazocine and tripelennamine, alone and in combination, were assessed on measures of analgesia (hot plate test) and locomotion (open field) in rats and mice. In Experiment 1, the combination of pentazocine and tripelennamine was found to produce analgesia at doses which were not analgesic when the drugs were given alone. This combination also reestablished analgesia in subjects made tolerant to pentazocine's effects. In Experiment 2, development of tolerance to the analgesic effects of pentazocine was delayed by addition of tripelennamine. In Experiment 3, locomotion was decreased by pentazocine at the highest dose. A similar reduction was produced …
Predation By Wild Coyotes: Behavioral And Ecological Analyses, Michael C. Wells, Marc Bekoff
Predation By Wild Coyotes: Behavioral And Ecological Analyses, Michael C. Wells, Marc Bekoff
Ethology Collection
Predatory behavior of coyotes (Canis latrans) was studied between 1977 and 1980 in the Grand Teton National Park, Jackson, Wyoming. Major prey were voles (Microtus spp.), Uinta ground squirrels (Spermophilus armatus), pocket gophers (Thomomys talpoides), and grasshoppers (Locustidae). Coyotes typically rushed and ran down squirrels; when hunting mice, coyotes pounced and stabbed at them with their forepaws. Sequence structure was similar, though sequences directed to squirrels were significantly more variable. When juvenile coyotes hunted mice, sequences were similar to those performed by adults that hunted mice. Adults and juveniles were about equally successful. The size of prey last eaten influenced …
Spatial Learning As An Adaptation In Hummingbirds, Susan Cole, F. Reed Hainsworth, Alan Kamil, Terre Mercier, Larry L. Wolf
Spatial Learning As An Adaptation In Hummingbirds, Susan Cole, F. Reed Hainsworth, Alan Kamil, Terre Mercier, Larry L. Wolf
Avian Cognition Papers
An ecological approach based on food distribution suggests that hummingbirds should more easily learn to visit a flower in a new location than to learn to return to a flower in a position just visited, for a food reward. Experimental results support this hypothesis as well as the general view that differences in learning within and among species represent adaptations.
The Problem Of Pain: What Do Animals Really Feel?, Dana H. Murphy
The Problem Of Pain: What Do Animals Really Feel?, Dana H. Murphy
Sentience Collection
Much of the contention and confusion that seem inevitably to arise whenever the subject of pain in animals comes up appear to stem principally from problems with the word "pain" itself. When used to describe responses in humans, "pain" can mean any subset of an incredibly broad spectrum of sensations and emotions, ranging from the instantaneous, galvanizing effect of a dentist drill hitting the nerve in a molar, to more airy notions such as the "pain" of rejection or "painfully" embarrassing situations. Humans even use concepts as abstruse as the German term, weltschmerz, or "world pain," which denotes a vaguely …
Behavioral Ecology Of Coyotes: Social Organization, Rearing Patterns, Space Use, And Resource Defense, Marc Bekoff, Michael C. Wells
Behavioral Ecology Of Coyotes: Social Organization, Rearing Patterns, Space Use, And Resource Defense, Marc Bekoff, Michael C. Wells
Ethology Collection
Two groups of coyotes in which genealogical relationships were known were studied in the Grand Teton National Park, outside of Jackson, Wyoming, U.S.A., from 1977-1982. One group, a pack consisting of parents and some non-dispersing and non-breeding offspring, defended a territory and the food (mainly elk carrion) contained within it, especially during winter, and also had helpers at den sites (5 of 6 were males). The other group, a mated resident pair, all of whose young dispersed during the first year of life, did not defend a territory and never had helpers at dens. Delayed dispersal and retention of some …
Validation Of The Tactual Performance Test As An Organicity Screening Device, Stephen C. Lippold
Validation Of The Tactual Performance Test As An Organicity Screening Device, Stephen C. Lippold
Masters Theses
Organicity screening devices are those psychometric tests used to detect brain dysfunction during the initial assessment. The characteristics of such tests were listed and ones currently being used were reviewed. The review concentrated on the validity and clinical utility of these organicity tests. From the review it was concluded that the validity has not been thoroughly established, partially because weak criteria have been used. It was also concluded that current screening tests have questionable clinical utility, since an inordinant number of organically impaired people are not detected by the tests. The concept of organicity was discussed, and the Tactual Performance …
Stimulus Control Exerted By Remember Cues Over Processing In Pigeons’ Short-Term Memory, Patricia E. Hernandez Torres
Stimulus Control Exerted By Remember Cues Over Processing In Pigeons’ Short-Term Memory, Patricia E. Hernandez Torres
Theses and Dissertations (Comprehensive)
The aim of the present research was to provide further evidence regarding the role of remember cues on pigeon short-term memory. The first two experiments were conducted to determine whether, using a single cuing procedure, control over delayed matching-to-sample (DMTS) performance could be demonstrated by establishing a no cue condition as an implicit cue to forget. In Experiment 1, subjects were provided with training in a procedure where both forget cue (F) and no cues indicated the omission of the comparison stimuli at the end of the delay interval. In Experiment 2, naive subjects were trained with remember (R) and …