Results 261 to 270 of about 6,396,936 (326)

Agonistic Behavior in Several Species of Fish

Psychological Reports, 1965
Seven species of fish were studied in an attempt to determine interspecies differences in the amount and type of agonistic behavior shown. Fish in each species were paired and the frequency of attacks shown during a 5-min. observation session was recorded.
A L, MCDONALD, N W, HEIMSTRA
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Gila Woodpecker Agonistic Behavior

The Auk, 1978
Abstract Agonistic behavior of Gila Woodpeckers, including vocalizations, visual displays, and other related behaviors, is described. Interactions with both con- and heterospecifics were analyzed by stochastic processes, and it is shown that the timing of aggression toward a species coincided with the time during which that species was ...
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Behavioral interactions between naloxone and dopamine agonists

European Journal of Pharmacology, 1977
A fixed-interval schedule of food presentation was used to study the effects of apomorphine, ET-495 and clonidine and interactions between these drugs and naloxone in the rat. The rate of responding under this schedule was decreased by low doses of apomorphine (0.03--0.3 mg/kg), ET-495 (0.3-1.0 mg/kg) and clonidine (0.03--0.3 mg/kg).
R A, Harris, D, Snell, H H, Loh, E L, Way   +3 more
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Reduction of Pig Agonistic Behavior by Androstenone

Journal of Animal Science, 1988
One hundred twenty-four prepuberal crossbred pigs were used in a series of behavioral bioassays to determine the minimum dose of androstenone (5 alpha-androst-16-en-3-one) that would reduce the level of agonistic behavior among dyads of newly regrouped pigs. Randomly selected females and castrated males were used in 21-h videotaped observation periods.
J J, McGlone, J L, Morrow
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Serotonergic Aspects of Agonistic Behavior

1989
For a number of decades serotonin (5-hydroxytryptamine, 5-HT) has been implicated in the control of aggressive behavior. Early work on 5-HT and aggression indicated that general 5-HT activation decreased aggression, whereas overall inactivation of 5-HT by various means enhanced it ...
Berend Olivier, Jan Mos
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Dopamine D3 agonists disrupt social behavior in rats

Brain Research, 1996
Behavioral studies were conducted in rats administered a selective D3 agonist, 7-hydroxy-N,N-di-n-propyl-2-aminotetralin (7-OH-DPAT) or 4aR, 10bR-(+)-trans-3,4,4a,10b-tetrahydro-4-propyl-2H,5H-[1] benzopyrano[4,3-b]-1,4-oxazin-9-ol (PD 128907). Both drugs induced disruption of huddling behavior in rats at doses that did not produce hyperlocomotion. The
T, Kagaya, M, Yonaga, Y, Furuya, T, Hashimoto, J, Kuroki, Y, Nishizawa   +5 more
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[Agonistic behaviors of aquatic animals].

Dong wu xue yan jiu = Zoological research, 2014
Aggressive encounters between animals of the same species have been termed as "agonistic behaviors". Different to aggressions in predator-prey and other nonsocial interactions, agonistic behaviors widely exist in various aquatic animal individuals. To provide references for future research of agonistic behaviors and aquaculture, this article reviewed ...
LI, Yu-Quan, SUN, Xia
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Agonistic behavior between pregnant mice and male intruders

Behavioral and Neural Biology, 1981
Female mice in three reproductive states (pregnant, pseudopregnant, or natural estrous cycling) encountered a male intruder in the female's home cage. Although females and males exhibited both aggressive and submissive behaviors, females exhibited significantly more aggressive and less submissive behaviors than males.
C, Hedricks, C E, Daniels
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Agonistic behavior of Cooper's Hawks

2001
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Antidepressant-like behavioral effects of serotonin receptor agonists

Neuroscience & Biobehavioral Reviews, 1994
The clinical discoveries that drugs that stimulate 5-HT neurotransmission, either by inhibiting 5-HT uptake or by stimulating postsynaptic receptors directly, have antidepressant properties has stimulated interest in defining the role of the 5-HT receptor system in the clinical effects of antidepressant drugs.
I, Lucki, A, Singh, D S, Kreiss
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