| transfer effects of successive discrimination-reversal training in chimpanzees. | chimpanzees receiving successive discrimination-reversal training on a single pair of stimuli transferred almost perfectly to two additional reversal tasks and to a "learning-set" series of 180 discrimination problems. a "win-stay, lose-shift" strategy, however it is acquired, seems to be a sufficient basis for one-trial discrimination learning. | 1962 | 13909605 |
| conditions influencing vocal responsiveness of infant chimpanzees. | infant chimpanzees were tested to determine the effects on distress vocalizations (whimpering, screaming) of stimulus conditions approximating the physical relationship to the mother. under such conditions spontaneous vocalizations were infrequent, and vocal responsiveness to a painful stimulus was substantially reduced. | 1962 | 17837096 |
| a detailed account of chimpanzee performance during the ballistic and orbital project mercury flights. | | 1962 | 13990894 |
| a performance schedule for extended space flight with the chimpanzee. | | 1962 | 13986464 |
| the physiological responses of chimpanzees to stimulated launch and re-entry accelerations. | | 1962 | 13984181 |
| chimpanzee performance on a two-dimensional discrete tracking task. | | 1962 | 13950950 |
| skeletal effects of prepubertal castration in the male chimpanzee. | | 1962 | 13879688 |
| studies on malaria in chimpanzees. ix. the distribution of the pre-erythrocytic forms of laverania falcipara. | | 1962 | 13872672 |
| infection of the chimpanzee (pan troglodytes verus) with trypanosoma rhodesiense and t. brucei. | | 1962 | 13864147 |
| six fatal cases of non-specific pericarditis in the chimpanzee. | | 1962 | 13861935 |
| the chimpanzee; a topical bibliography. | | 1962 | 13982458 |
| chimpanzee performance during exposure to 100 per cent oxygen at 14.7 psi. | | 1962 | 13944454 |
| chimpanzees in the wild. | | 1962 | 14458553 |
| [contribution to the study of trichuriasis in the chimpanzee and of its treatment with methyridine]. | | 1962 | 13920643 |
| the effects of exposure to simulated launch and re-entry profiles on chimpanzee performance. | | 1962 | 13986430 |
| [pericarditis verminosa (strongyloides) in chimpanzees]. | | 1962 | 14465161 |
| [comparative study of the light beta-lipoproteins in chimpanzees and humans (eastern european and bantu)]. | | 1962 | 13885119 |
| the electrocardiogram of the young chimpanzee. | | 1961 | 24546901 |
| gross body measurements of the young chimpanzee. | | 1961 | 24546696 |
| a restraint device for behavioral research with the chimpanzee. | | 1961 | 24546594 |
| destruction of chimpanzee kidney cells by sera from patients with acute infectious hepatitis. | | 1961 | 13907455 |
| destruction of chimpanzee kidney cells by sera from patients with acute infectious hepatitis. | | 1961 | 13907454 |
| transferrin differences in chimpanzee sera. | | 1961 | 13874477 |
| preference for clear versus distored viewing in the chimpanzee. | young chimpanzees preferred to look through a clear window rather than through a window that produced a distorted image of viewed objects. performance did not appear to be affected by familiarity with the viewing stimulus. | 1961 | 14472706 |
| the development of an instrumental skill sequence in the chimpanzee. | | 1961 | 14493413 |
| maternal care during infancy: its effect on weight gain and mortality in the chimpanzee. | | 1961 | 13883729 |
| avoidance conditioning in the chimpanzee. | | 1961 | 13879684 |
| response variability and rigidity in the adult chimpanzee. | | 1961 | 13868268 |
| studies on infection and immunity in experimental typhoid fever. iii. effect of prophylactic immunization. | a study was made of the efficacy of various antityphoid immunizing agents in immunizing chimpanzees against typhoid fever produced by feeding viable s. typhosa. it was found that both acetone-killed and heat-killed, phenol-preserved typhoid vaccines were effective in protecting against infection induced with either homologous or heterologous strains of typhoid bacilli. purified o antigen induced no discernible protection, but some immunity was afforded by the administration of purified vi antige ... | 1961 | 13702952 |
| physiological base-line studies of zoological specimens. serum biochemical values of chimpanzees. | | 1961 | 24546718 |
| behavior of the chimpanzee on a complex multiple schedule. | | 1961 | 24546541 |
| the effect of frontal-lobe damage on delayed response performance in chimpanzees. | | 1961 | 13743783 |
| [blood groups of chimpanzees]. | | 1961 | 13697720 |
| [detection of antigens to blood groups a, b, o and rh in the chimpanzee ape]. | | 1961 | 13683342 |
| a zoometric study to determine the optimum manual performance areas for the chimpanzee. | | 1961 | 24545982 |
| an outbreak of infectious hepatitis among chimpanzee handlers at a united states air force base. | | 1961 | 13714377 |
| physiological base-line studies of zoological specimens. clinical observations and methods used in the treatment of young chimpanzees. | | 1961 | 24545590 |
| chimpanzee temperature-humidity tolerance tests. control tests at 80 degrees f., 50 percent relative humidity. (tr-61-11). | | 1961 | 24545388 |
| the chimpanzee. procurement, standardization, and use in biomedical research. | | 1961 | 13695253 |
| the blood groups of chimpanzees: the rh-hr (cde/cde) blood types. | | 1961 | 13785097 |
| an outbreak of infectious hepatitis among chimpanzee handlers at a united states air force base. | | 1961 | 24545676 |
| some aspects of behavior toward novelty in young chimpanzees. | | 1961 | 13769508 |
| measurement of higher intellectual functioning in the chimpanzee. its relevance to the study of behavior in space environments. | | 1961 | 13742829 |
| [use of an instrument by a chimpanzee in an experimental situation]. | | 1961 | 14461472 |
| the blood groups of chimpanzees a-b-o groups and m-n types. | | 1960 | 13785096 |
| studies on infection and immunity in experimental typhoid fever. ii. susceptibility of recovered animals to re-exposure. | chimpanzees recovered from typhoid fever induced by ingestion of large numbers of phage-type t s. typhosa were rechallenged approximately a year and a half later with a like number of a phage-type e(1) strain. control animals exhibited febrile responses, bacteriemia, and other significant laboratory and clinical findings, including increases in c-reactive protein levels and sedimentation rates. all of the previously infected and recovered chimpanzees were negative with respect to the aforementio ... | 1960 | 13702954 |
| role of corpus callosum in transfer of tactuokinesthetic learning in chimpanzee. | | 1960 | 13727227 |
| morphology of the cerebellar dentate nucleus in a chimpanzee. | | 1960 | 13719807 |
| association of the chimpanzee coryza agent with acute respiratory disease in children. | | 1960 | 13798226 |
| the measurement of concept formation in the chimpanzee and its relevance to the study of behavior in space environments. | | 1960 | 24546214 |
| physiological base-line studies on zoological specimens. phase 1. hematological values of immature chimpanzees. | | 1960 | 24546052 |
| chimpanzee temperature-humidity tolerance test no. 1. (tn-60-11). | | 1960 | 24545387 |
| regional differences in acid phosphatase and tween esterase activity in the epidermis of the chimpanzee and the macaque. | | 1960 | 14424075 |
| [angioneurotic edema of the skin in an anthropoid ape (chimpanzee)]. | | 1960 | 13699778 |
| chromosome number of the chimpanzee, pan troglodytes. | the chromosome numbers of nine chimpanzees (pani troglodytes) have been determined by the bone marrow technique. the diploid number in this species is 48, with a probable xx-xy sex chromosome constitution. | 1960 | 13846659 |
| a reconstruction of the diencephalic nuclei of the chimpanzee. | | 1960 | 13712931 |
| [the state of trace conditioned reflexes in the chimpanzee in relation to the sexual cycle]. | | 2006 | 13699779 |
| [cortical electrical responses to somesthesic, visual and auditory stimulations, on the cortex of a chimpanzee]. | | 1960 | 14401977 |
| restraint of chimpanzees with perphenazine. | | 1960 | 13856475 |
| observations on chimpanzees after whole-body radiation and homologous bone marrow treatment. | | 1959 | 14439431 |
| [experimental study of sleep in anthropomorphic apes (chimpanzee)]. | | 1959 | 14410799 |
| [electrocortical responses of a chimpanzee to somesthetic, visual & auditory stimulation]. | | 2006 | 13665533 |
| [formation of motor conditioned reflexes in anthropoid apes (chimpanzee) to verbal sound complexes]. | | 1959 | 14420044 |
| [analytic and synthetic function of the greater hemispheres in chimpanzee]. | | 2006 | 13636408 |
| concept formation in chimpanzees. | animals performed with a high degree of accuracy on two concept problems. the bases of these performances, however, differed qualitatively. in one problem, successful performance was based upon responding to specific stimulus patterns. in the other problem, successful performance was based upon responding to the common element or concept. | 1958 | 13592253 |
| acrocephalo-oligodactylism in a wild chimpanzee. | | 1958 | 13587389 |
| [clinical and histological study of fatty degeneration of the liver in chimpanzees that have died in captivity at the pasteur institute of kindia from 1950-1956]. | | 1958 | 13583652 |
| [study of mimicry in anthropoids; laughter in chimpanzees]. | | 1958 | 13578910 |
| fixed-ratio schedules of conditioned reinforcement with chimpanzees. | | 1958 | 16811227 |
| physiologic and pathologic effects in chimpanzees during prolonged exposure to 40 transverse g. | | 1958 | 13575360 |
| intermittent reinforcement of a complex response in a chimpanzee. | | 1958 | 16811212 |
| stimulus-producing responses in chimpanzees. | | 1958 | 14454922 |
| the grooming behavior of the chimpanzee as a reinforcer. | | 1958 | 13891441 |
| studies on malaria in chimpanzees. vi. laverania falciparum. | | 1958 | 13508992 |
| conditioned reinforcement in chimpanzees. | | 1957 | 13502499 |
| [cycloserine in the chimpanzee, the macaca rhesus, the cynocephalus, the papio & the ordinary laboratory animals]. | | 1957 | 13528528 |
| recovery from infants with respiratory illness of a virus related to chimpanzee coryza agent (cca). ii. epidemiologic aspects of infection in infants and young children. | | 1957 | 13478579 |
| recovery from infants with respiratory illness of a virus related to chimpanzee coryza agent (cca). i. isolation, properties and characterization. | | 1957 | 13478578 |
| [causes of death in captive chimpanzees at pasteur institute of kindia (1950-1956)]. | | 1957 | 13470473 |
| renal functions in the chimpanzee. | | 1957 | 13458422 |
| day-by-day response of vaccinated chimpanzees to poliomyelitic infection. | | 1957 | 13435393 |
| concurrent schedules of reinforcement in the chimpanzee. | | 1957 | 13432768 |
| pneumococcal peritonitis in a male chimpanzee. | | 1957 | 13417245 |
| degeneration of retinal ganglion cells in infant chimpanzees reared in darkness. | | 1957 | 13416408 |
| [backward conditioning. iv. backward conditioning in chimpanzees]. | | 1957 | 13413883 |
| [conditioned inhibition in primates. ii. differentiation of food and play conditioned inhibition in young chimpanzee]. | | 1957 | 13556979 |
| intermittent conditioned reinforcement in chimpanzees. | | 1956 | 17800891 |
| simple color discrimination in chimpanzees: effect of varying contiguity between cue and incentive. | | 1956 | 13376760 |
| recovery of cytopathogenic agent from chimpanzees with coryza. | | 1956 | 13359460 |
| [a new trait in the relation between men and anthropoids (chimpanzee)]. | | 1956 | 13347044 |
| effects of age and experience on play and exploration of young chimpanzees. | | 1956 | 13332116 |
| variability of play and exploratory behavior in chimpanzees. | | 1956 | 13319533 |
| some determinants of play and exploration in chimpanzees. | | 1956 | 13295414 |
| [dynamic stereotype of anthropoids (chimpanzee)]. | | 2006 | 13338869 |
| [correlation between digestive and play-conditioned reflex actions in young chimpanzee]. | | 2006 | 13301029 |
| poliomyelitis infection in immunized chimpanzees. | | 1955 | 13340611 |
| spontaneous salivary gland virus disease in chimpanzees. | | 1955 | 13248339 |
| [right hepatic artery in chimpanzees]. | | 1955 | 13259170 |
| interocular transfer of learning in visually naive and experienced infant chimpanzees. | | 1955 | 13252148 |
| the choledocho- and pancreaticoduodenal junctions in the chimpanzee. | | 1955 | 14373313 |