| Records |
| Author |
Shettleworth, S.J. |
| Title |
Taking the best for learning |
Type |
Journal Article |
| Year |
2005 |
Publication |
Behavioural processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
69 |
Issue |
2 |
Pages |
147-9; author reply 159-63 |
| Keywords |
*Algorithms; Animals; *Behavior, Animal; Decision Making; Evolution; *Learning; *Models, Theoretical |
| Abstract |
Examples of how animals learn when multiple, sometimes redundant, cues are present provide further examples not considered by Hutchinson and Gigerenzer that seem to fit the principle of taking the best. “The best” may the most valid cue in the present circumstances; evolution may also produce species-specific biases to use the most functionally relevant cues. |
| Address |
Department of Psychology, University of Toronto, Toronto, Ont., Canada M5S 3G3. shettle@psych.utoronto.ca |
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0376-6357 |
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PMID:15845301 |
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refbase @ user @ |
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361 |
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| Author |
Gibson, B.M.; Shettleworth, S.J.; McDonald, R.J. |
| Title |
Finding a goal on dry land and in the water: differential effects of disorientation on spatial learning |
Type |
Journal Article |
| Year |
2001 |
Publication |
Behavioural brain research |
Abbreviated Journal |
Behav. Brain. Res. |
| Volume |
123 |
Issue |
1 |
Pages |
103-111 |
| Keywords |
Animals; Cues; Environment; Male; Maze Learning/*physiology; Orientation/*physiology; Rats; Rats, Long-Evans; Spatial Behavior/*physiology; Water |
| Abstract |
Two previous studies, Martin et al. (J. Exp. Psychol. Anim. Behav. Process. 23 (1997) 183) and Dudchenko et al. (J. Exp. Psychol. Anim. Behav. Process. 23 (1997) 194), report that, compared to non-disoriented controls, rats disoriented before testing were disrupted in their ability to learn the location of a goal on a dry radial-arm maze task, but that both groups learned at the same rate in the Morris water maze. However, the radial-arm maze task was much more difficult than the water maze. In the current set of experiments, we examined the performance of control and disoriented rats on more comparable dry land and water maze tasks. Compared to non-disoriented rats, rats that were disoriented before testing were significantly impaired in locating a goal in a circular dry arena, but not a water tank. The results constrain theoretical explanations for the differential effects of disorientation on different spatial tasks. |
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Department of Psychology, University of Toronto, 100 St. George Street, Toronto, Ontario, Canada M5S 3G3. gibson@psych.utoronto.ca |
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0166-4328 |
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PMID:11377733 |
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no |
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refbase @ user @ |
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372 |
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| Author |
Witte, K.; Ryan, M.J. |
| Title |
Mate choice copying in the sailfin molly, Poecilia latipinna, in the wild |
Type |
Journal Article |
| Year |
2002 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
63 |
Issue |
5 |
Pages |
943-949 |
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1809 |
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| Author |
Slagsvold, T.; Viljugrein, H. |
| Title |
Mate choice copying versus preference for actively displaying males by female pied flycatchers |
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Journal Article |
| Year |
1999 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
57 |
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3 |
Pages |
679-686 |
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1810 |
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White, D.J.; Galef Jr, B.G. |
| Title |
Mate choice copying and conspecific cueing in Japanese quail,Coturnix coturnix japonica |
Type |
Journal Article |
| Year |
1999 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
57 |
Issue |
2 |
Pages |
465-473 |
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1811 |
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Dugatkin, L.A. |
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A comment on Lafleur et al.'s re-evaluation of mate-choice copying in guppies |
Type |
Journal Article |
| Year |
1998 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
56 |
Issue |
2 |
Pages |
513-514 |
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1812 |
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| Author |
Hoglund, J.; Alatalo, R.V.; Gibson, R.M.; Lundberg, A. |
| Title |
Mate-choice copying in black grouse |
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Journal Article |
| Year |
1995 |
Publication |
Animal Behaviour. |
Abbreviated Journal |
Anim. Behav. |
| Volume |
49 |
Issue |
6 |
Pages |
1627-1633 |
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1817 |
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Nyman, S.; Dahlborn, K. |
| Title |
Effect of water supply method and flow rate on drinking behavior and fluid balance in horses |
Type |
Journal Article |
| Year |
2001 |
Publication |
Physiology & Behavior |
Abbreviated Journal |
Physiol. Behav. |
| Volume |
73 |
Issue |
1-2 |
Pages |
1-8 |
| Keywords |
Animals; Choice Behavior/physiology; Drinking Behavior/*physiology; Horses/*physiology; Male; Thirst/physiology; *Water Supply; Water-Electrolyte Balance/*physiology |
| Abstract |
This study investigated three methods of water supply on drinking preference and behavior in six Standardbred geldings (2-9 years, 505+/-9 kg). The water sources were buckets (B), pressure valve (PV), and float valve (FV) bowls. In an initial drinking preference test, PV was tested at three flow rates: 3, 8, and 16 l/min (PV3, PV8, and PV16), and FV at 3 l/min (FV3). Water intake was measured in l and presented as the percentage of the total daily water intake from each of two simultaneously presented alternatives. The intake from PV8 was greater than from both PV3 (72+/-11% vs. 28+/-11%) and PV16 (90+/-4% vs. 10+/-4%). All horses showed a strong preference for B, 98+/-1% of the intake compared to 2+/-1% from PV8. Individual variation in the data gave no significant difference in preference between the two automatic bowls. In the second part of the study, drinking behavior and fluid balance were investigated when the horses drank from FV3, PV8, and B for 7 consecutive days in a changeover design. Despite a tendency for an increase in total daily drinking time from FV3, the daily water intake was significantly lower (43+/-3 ml/kg) than from PV8 (54+/-2 ml/kg) and B (58+/-3 ml/kg). Daily net water gain [intake-(fecal+urinary output)] was only 0.5+/-3 ml/kg with FV3, resulting in a negative fluid balance if insensible losses are included. These results show that the water supply method can affect both drinking behavior and fluid balance in the horse. |
| Address |
Department of Animal Physiology, Swedish University of Agricultural Sciences, Box 7045, S-750 07 Uppsala, Sweden. sara.nyman@djfys.slu.se |
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0031-9384 |
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PMID:11399288 |
Approved |
no |
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refbase @ user @ |
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1919 |
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Caanitz, H.; O'Leary, L.; Houpt, K.; Petersson, K.; Hintz, H. |
| Title |
Effect of exercise on equine behavior |
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Journal Article |
| Year |
1991 |
Publication |
Applied Animal Behaviour Science |
Abbreviated Journal |
Appl. Anim. Behav. Sci. |
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31 |
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1-2 |
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1-12 |
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The effect of short periods of strenuous exertion, in this case treadmill exercise, on the subsequent behavior of Standardbred horses was examined. Six horses were exercised on a high-speed treadmill 4 or 5 days per week, for 3-4 miles (approximately 1.8 m s-1 for 3 min, 5 m s-1 for 12 min, 9 m s-1 for 3 min, 3 m s-1 for 3 min, 1.8 m s-1 for 3 min). The behavior of the horses was observed in the horse's home stall immediately after exercise and 2-7 h after exercise. Focal animal sampling for a total of 150 h revealed that the horses spent significantly more time drinking and less time resting after exercise than they did on control (non-exercise or rest days). The greatest influence on behavior was seen immediately after exercise. The horses spent 13.2+/-2.7 s per 15 min drinking after exercise and 7.2+/-2.3 s per 15 min drinking on non-exercise days. They spent 7.3+/-1.5 min h-1 stand resting after exercise and 9.7+/-2.1 min h-1 on non-exercise days. These changes in behavior may be related to the physiological changes that accompany exercise. Eating, walking, elimination and self-grooming were not significantly influenced by exercise. In a second experiment the activities of two groups of six Standardbred mares were compared. One group was exercised on the treadmill and the other was not. The exercised horses spent more time drinking and lying, but urinated less than the non-exercised group. |
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refbase @ user @ |
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1989 |
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Dunbar, R.I.M.; McAdam, M.R.; O'connell, S. |
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Mental rehearsal in great apes (Pan troglodytes and Pongo pygmaeus) and children |
Type |
Journal Article |
| Year |
2005 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behav. Process. |
| Volume |
69 |
Issue |
3 |
Pages |
323-330 |
| Keywords |
Algorithms; Animals; Child; Child, Preschool; Food; Frontal Lobe/anatomy & histology/physiology; Humans; *Imagination; Pan troglodytes; Pongo pygmaeus; Problem Solving/*physiology; Psychomotor Performance/physiology; Reward |
| Abstract |
The ability to rehearse possible future courses of action in the mind is an important feature of advanced social cognition in humans, and the “social brain” hypothesis implies that it might also be a feature of primate social cognition. We tested two chimpanzees, six orangutans and 63 children aged 3-7 years on a set of four puzzle boxes, half of which were presented with an opportunity to observe the box before being allowed to open it (“prior view”), the others being given without an opportunity to examine the boxes before handling them (“no prior view”). When learning effects are partialled out, puzzle boxes in the “prior view” condition were opened significantly faster than boxes given in the “no prior view” condition by the children, but not by either of the great apes. The three species differ significantly in the speed with which they opened boxes in the “no prior view” condition. The three species' performance on this task was a function of relative frontal lobe volume, suggesting that it may be possible to identify quantitative neuropsychological differences between species. |
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Evolutionary Psychology Research Group, School of Biological Sciences, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, UK. rimd@liv.ac.uk |
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0376-6357 |
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PMID:15896530 |
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no |
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2097 |
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