- Primate Behavior and Ecology
- Animal Behavior and Welfare Studies
- Stress Responses and Cortisol
- Dermatology and Skin Diseases
- Animal Vocal Communication and Behavior
- Human-Animal Interaction Studies
- Herpesvirus Infections and Treatments
- Hair Growth and Disorders
- Olfactory and Sensory Function Studies
- Autism Spectrum Disorder Research
- Animal Behavior and Reproduction
- Behavioral and Psychological Studies
- Insect and Pesticide Research
- Neuroendocrine regulation and behavior
- Evolutionary Psychology and Human Behavior
- Animal testing and alternatives
- Salivary Gland Disorders and Functions
- Rabbits: Nutrition, Reproduction, Health
- Attention Deficit Hyperactivity Disorder
- Face Recognition and Perception
- Thermoregulation and physiological responses
- Rabies epidemiology and control
- Vagus Nerve Stimulation Research
- Neurogenesis and neuroplasticity mechanisms
- Neurotransmitter Receptor Influence on Behavior
Texas Biomedical Research Institute
2013-2023
National Academies of Sciences, Engineering, and Medicine
2022
National Institutes of Health
2007
Harvard University
2003-2006
New England Biolabs (United States)
2006
Primate Conservation
2000-2004
University of Washington
1998-2000
University of Massachusetts Amherst
1995
Abstract Abnormal behavior in captive rhesus monkeys can range from active whole‐body and self‐directed stereotypies to self‐injurious (SIB). Although abnormal behaviors are common singly‐housed monkeys, the type frequency of these highly variable across individual animals, factors influencing them equally varied. The purpose this investigation was survey a large population macaques, characterize relationship between self‐injury, identify potential risk for aberrant behaviors. Behavioral...
Cortisol levels serve as an index of pituitary-adrenal activity in nonhuman primates. In adult monkeys, cortisol is normally measured blood (typically requiring restraint or sedation) urine (reflecting a state rather than point estimate). contrast, saliva collection less invasive drawing and allows for repeated sampling within short period time. Although protocols exist collecting from young these procedures are inadequate awake, unrestrained animals. Our laboratory has developed two methods...
Abstract The development of self‐biting behavior in captive monkeys is little understood and poses a serious risk to their well‐being. Although early rearing conditions may influence the expression this behavior, not all animals reared under similar self‐bite. purpose study was examine effects three on biting determine whether infant can predict later self‐biting. subjects were 370 rhesus macaques born at National Institutes Health (NIH) Animal Center between 1994 2004. They conditions:...
Measurement of cortisol in hair provides a chronic index hypothalamic–pituitary–adrenal (HPA) axis activity and has been applied to assessments temperament (stable behavioral differences between individuals). However, the extent which chronically high HPA relates correspondingly degree reactivity is as yet unknown. Therefore, goal present experiment was assess relationship reactive temperament. We administered Human Intruder Test (HIT) twice 145 (80 male) rhesus macaques ( Macaca mulatta )...
Alopecia is a ubiquitous, multifaceted problem at facilities caring for captive rhesus macaques. There wide range of potential etiologies the hair loss, including compromised immune function, dermatological pathologies, and environmental factors. However, few studies have examined whether various temperamental traits affect vulnerability to develop alopecia. We correlation between alopecia temperament in 101 (51M) indoor-housed macaques four national primate centers. utilized cage side...
Hair loss is common in macaque colonies. Very little known about the relationship between psychological stress and hair loss. We initially examined alopecia cortisol concentrations 198 (89 male) rhesus macaques from three primate centers demonstrated replicability of our previous finding that extensive (>30% loss) associated with increased chronic significantly affected by facility. A subset these monkeys (142 which 67 were males) sampled twice approximately 8 months apart allowing us to...
Abstract Background Alopecia can occur in captive non‐human primates, but its etiology is poorly understood. The purpose of this study was to assess alopecia and hair cortisol rhesus monkeys identify the potential risk factors. Methods Subjects were 117 at two National Primate Research Centers. Photographs samples obtained during routine physicals. analyzed using Image J software calculate loss, assayed for cortisol. Results Age, days singly housed, their interactions contributed model both...
Chimpanzees demand specialized housing and care the highest degree of attention to animal welfare. The current project used a survey method collate information on chimpanzee behavioral indices welfare across all 6 research facilities in United States. Data were compiled 701 chimpanzees ranging from 2 62 y old (mean age, 26.0 y). All except for one socially housed; median group size was 7 animals, sizes ranged 1 14. subjects had access outdoor spaces each day. Daily natural substrate...
Face-like patterns attract attention from both human and nonhuman primates. The present study explored the facial preferences in infant pigtailed macaques (Macaca nemestrina). Twenty-five subjects looked at 20 paired drawings of adult conspecific monkey faces, their looking time was recorded. features were arranged positions ranging a normal to scrambled face. face more than expected by chance (P < .02), suggesting preference, whereas distorted faces observed randomly. may have been...
Self-injurious behavior (SIB) occurs in both human and nonhuman primate populations. Despite the potential for harm, SIB may persist part because of an inability to inhibit that results wounding. A lever-pressing task was used test prediction monkeys with would show greater persistence on extinction trials than without disorder. The subjects were 15 individually-housed adult male rhesus macaques, 10 which (the group) had a veterinary record self-inflicted All trained lever-press food rewards...
Abnormal behavior, ranging from motor stereotypies to self‐injurious has been documented in captive nonhuman primates, with risk factors including nursery rearing, single housing, and veterinary procedures. Much of this research focused on macaque monkeys; less is known about the extent for abnormal behavior baboons. Because can be indicative poor welfare, either past or present, purpose study was survey presence baboons identify potential these behaviors an aim prevention. Subjects were 144...
Alopecia in captive non-human primates is often presented as a welfare issue. However, it complex condition with number of possible causes. The purpose this study was to assess the impact pregnancy and hair cortisol concentrations on alopecia rhesus macaques.Subjects were 113 socially housed adult female macaques (27 pregnant, 35 nursing infants, 51 controls). During routine physicals, photographs taken for assessment samples collected assay.Alopecia more prevalent pregnant than control...
Abstract Searching for and processing food are important activities of free‐ranging primates. In contrast, captive primates spend little time foraging. Their is readily available, easily obtained, can be consumed quickly. The present study compared the use foraging racks a shavings substrate as two manipulations used to alter feeding behavior in nonhuman Each method was tested between baseline periods (no or present). Behavioral data were collected using 30‐sec scan sampling procedure 1 hr...