Zobrazeno 1 - 10
of 11
pro vyhledávání: '"L K, Takahashi"'
Autor:
Ruliang Pan, L. K. Takahashi
Publikováno v:
International Journal of Primatology. 15:597-621
Recent field studies suggest that Macaca thibetana,a large endemic Chinese macaque, may be quite folivorous, distinguishing it from most other macaque species, which tend to be primarily frugivorous. To understand how this diet affects its masticator
Autor:
L. K. Takahashi
Publikováno v:
International Journal of Primatology. 12:599-614
The characteristic long forelimbs of gibbons are a consequence of elongation of all segments (hand, forearm, and arm) but especially the forearm. While the hand is limited in size by its prehensile role, both the arm and the forearm do not seem to be
Autor:
L. K. Takahashi
Publikováno v:
International Journal of Primatology. 12:529-532
Autor:
L K, Takahashi, W W, Rubin
Publikováno v:
Behavioral neuroscience. 107(5)
Termination of ongoing behavior and assumption of defensive postures when threatened are adaptive characteristics of vertebrates. Altricial rat pups develop these characteristics by 14 days of age. At this time, pups inhibit their ultrasonic vocaliza
Publikováno v:
Child development. 62(5)
We examined the ontogeny of the infant rhesus monkey's defensive behaviors and the ability to modulate them in response to specific environmental cues. Rhesus infants in 4 age groups (N = 8 per group) were briefly separated from their mothers and tes
Publikováno v:
Behavioral neuroscience. 104(2)
This study examined the hypothesis that defensive responsiveness induced by threatening stimuli of biological origin is mediated by the action of endogenous corticotropin-releasing factor (CRF). Rats were exposed for 15 min to a large open field cont
Publikováno v:
Journal of comparative psychology (Washington, D.C. : 1983). 97(3)
This investigation was concerned with the extent to which aggressive resident rats emit 40-70-kHz vocalizations and the effect of these signals on intruders. In Experiment 1, deafened and intact intruder males were given two encounters with resident
Publikováno v:
Journal of comparative psychology (Washington, D.C. : 1983). 97(3)
This investigation was concerned with the identification of the ultrasonic vocalizations produced by intruders during aggressive interactions and the role of these signals in agonistic behavior of rats. In the first experiment, experienced resident m
Autor:
L K, Takahashi, C D, Gladstone
Publikováno v:
Behavioral neuroscience. 102(2)
Two experiments were conducted to examine the behavioral effects of medial amygdaloid (M) lesions during the estrous cycle in female golden hamsters. In Experiment 1, males were paired with gonadally intact M-lesioned, sham-operated, or ovariectomize
Autor:
L K, Takahashi, R D, Lisk
Publikováno v:
Journal of comparative psychology (Washington, D.C. : 1983). 98(3)
Social interactions of cycling female golden hamsters paired with ovariectomized animals in large enclosures were primarily agonistic over the 4-day estrous cycle. These aggressive interactions were intense as indicated by frequent occurrences of cha