| Records |
| Author |
Cynx, J.; Hulse, S.H.; Polyzois, S. |
| Title |
A psychophysical measure of pitch discrimination loss resulting from a frequency range constraint in European starlings (Sturnus vulgaris) |
Type |
Journal Article |
| Year |
1986 |
Publication |
Journal of Experimental Psychology. Animal Behavior Processes |
Abbreviated Journal |
J Exp Psychol Anim Behav Process |
| Volume |
12 |
Issue |
4 |
Pages  |
394-402 |
| Keywords |
Animals; *Birds; Cognition; Female; *Generalization, Stimulus; Male; *Pitch Discrimination; Psychoacoustics; Transfer (Psychology) |
| Abstract |
Earlier research (Hulse & Cynx, 1985) revealed that a number of species of songbirds acquired a pitch discrimination between rising and falling sequences in an arbitrarily defined training range of frequencies, but then failed to generalize the discrimination to new frequency ranges--a frequency range constraint. The two experiments here provide a psychophysical estimate of how pitch discrimination deteriorated in one species as sequences were stepped out from the training range. The gradient showing loss of discrimination was much sharper than would have been anticipated by stimulus generalization or the training procedures, and appeared unaffected by the removal of rising and falling frequency information. The frequency range constraint and its psychophysical properties have implications both for the analysis of birdsong and the study of animal cognition. |
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0097-7403 |
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PMID:3772303 |
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no |
| Call Number |
Equine Behaviour @ team @ |
Serial |
2786 |
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| Author |
Zentall, S.S.; Zentall, T.R. |
| Title |
Hyperactivity ratings: statistical regression provides an insufficient explanation of practice effects |
Type |
Journal Article |
| Year |
1986 |
Publication |
Journal of pediatric psychology |
Abbreviated Journal |
J Pediatr Psychol |
| Volume |
11 |
Issue |
3 |
Pages |
393-396 |
| Keywords |
Attention Deficit Disorder with Hyperactivity/*diagnosis; Child; Humans; Male; *Practice (Psychology); *Statistics |
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0146-8693 |
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PMID:3772683 |
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no |
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refbase @ user @ |
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261 |
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| Author |
Lima, S.L. |
| Title |
Predation Risk and Unpredictable Feeding Conditions: Determinants of Body Mass in Birds |
Type |
Journal Article |
| Year |
1986 |
Publication |
Ecology |
Abbreviated Journal |
Ecology |
| Volume |
67 |
Issue |
2 |
Pages |
377-385 |
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doi: 10.2307/1938580 |
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no |
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Equine Behaviour @ team @ |
Serial |
5141 |
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| Author |
Cox Je, |
| Title |
Behaviour of the false rig: Causes and treatments |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
Vet Record |
| Volume |
118 |
Issue |
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Pages |
353-356 |
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from Professor Hans Klingels Equine Reference List |
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no |
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995 |
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| Author |
Zumpe, D.; Michael, R.P. |
| Title |
Dominance index: A simple measure of relative dominance status in primates |
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Journal Article |
| Year |
1986 |
Publication |
American journal of primatology |
Abbreviated Journal |
Am. J. Primatol. |
| Volume |
10 |
Issue |
4 |
Pages |
291-300 |
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| Abstract |
A simple measure of relative dominance status (cardinal rank) is described which we have termed the dominance index. Like more familiar techniques for assessing rank order, it is based on the direction of aggressive and submissive behaviors between all possible paired combinations of animals in a social group. Using data from five groups of female rhesus monkeys, it reliably produced the same ordinal ranks as fight interaction matrices. There was also good agreement with the cardinal ranks produced by two additional measures of dominance and with those produced by observer ratings. The dominance index can be calculated when fights have not actually occurred and is largely independent of the frequency of agonistic interactions. It has, therefore, wide application and can estimate dominance during brief sampling periods (one hour) and also in stable groups when agonistic interactions are low. Its application is described in experiments in which the male in a group of females was changed and the hormonal status of the females was altered. Estrogen increased female dominance status relative to other females. |
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1098-2345 |
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no |
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refbase @ user @ DorisZumpe1986 |
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871 |
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| Author |
Rubenstein, D. I., |
| Title |
Ecology and sociality in horses and zebras |
Type |
Book Chapter |
| Year |
1986 |
Publication |
Ecological Aspects of Social Evolution |
Abbreviated Journal |
Ecological Aspects of Social Evolution |
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Pages |
282-302 |
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Princeton University Press |
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Princeton, NJ. |
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Rubenstein, D. I. ; Wrangham, R. W. |
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| Notes |
from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1526 |
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| Author |
Turner Jw, K.J. |
| Title |
Fertility control as a management tool for feral horse populations |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
J Equine Vet Sc |
| Volume |
6 |
Issue |
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Pages |
278-284 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1669 |
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| Author |
White Dj, |
| Title |
The american humane association: Position on wild horse management |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
J Equine Vet Sc |
| Volume |
6 |
Issue |
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Pages |
276-277 |
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from Professor Hans Klingels Equine Reference List |
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no |
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1706 |
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| Author |
Mclain Jl, |
| Title |
The wild horse controversy |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
J Equine Vet Sc |
| Volume |
6 |
Issue |
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Pages |
274-275 |
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from Professor Hans Klingels Equine Reference List |
Approved |
no |
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Serial |
1382 |
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| Author |
Godfrey Eb, L.P. |
| Title |
Wild horsres mangement: An economic perspective |
Type |
Journal Article |
| Year |
1986 |
Publication |
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Abbreviated Journal |
J Equine Vet Sc |
| Volume |
6 |
Issue |
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Pages |
266-273 |
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from Professor Hans Klingels Equine Reference List |
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no |
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Serial |
1117 |
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