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In Experiment 1, 3-6-day-old rats were simultaneously exposed to an unfamiliar odor which they will normally avoid (orange extract) and the odor of maternal saliva, or to either orange alone or saliva alone. One hour later, in a two-odor choice test, those pups which were simultaneously exposed to orange and saliva exhibited an enhanced orientation to the(More)
In the spirit of adventure that has been characteristic of our Society, I am going to ask you to join me in a mental journey. The purpose is to try to look at something familiar in a new way. We are going to be looking at bereavement—something you all know a lot about—and I am going to try to get a different perspective on it by using information gathered(More)
This study tested whether mothers with interpersonal violence-related posttraumatic stress disorder (IPV-PTSD) vs healthy controls (HC) would show greater limbic and less frontocortical activity when viewing young children during separation compared to quiet play. Mothers of 20 children (12-42 months) participated: 11 IPV-PTSD mothers and 9 HC with no PTSD.(More)
In Part I of this study maternal behavior of 15 spontaneously hypertensive (SHR) and 11 Wistar-Kyoto (WKY) rat mothers was recorded throughout the preweaning period. SHR mothers were observed: 1) in arched-and blanket-nursing postures more often, and in passive-nursing posture less often, 2) licking their pups more often, and 3) resting less often. Further,(More)
BACKGROUND As a key regulator of serotonergic activity and target of many antidepressant treatments, the serotonin transporter (SERT) represents a potential mediator of anxiety- and depression-related behaviors. Using mice lacking the SERT (SERT KO), we examined the role of SERT function in anxiety- and depression-related behaviors and serotonergic neuron(More)
Recently captured wild rodents of six different species were tested in a standard "open field" arena where they were subjected to sudden visual and auditory stimulation as well as to a natural predator. Periods of prolonged immobility ranging from 2 to more than 60 minutes' duration were elicited in 21 members of four species. This behavioral state was(More)
Emissions of ultrasonic vocalizations (USVs) by rat pups (Rattus norvegicus) during hypothermia have consequences for recovery and warming. We investigated the effects on dam behavior of USVs emitted by 3- to 11-day-old pups during hypothermia at rectal temperatures between 18 and 22 degrees C. Rat dams were tested in a Y maze with the home cage as a start(More)
The presence of a passive (anesthetized) littermate greatly reduced the ultrasonic vocalization of 2-wk-old rat pups placed suddenly in an unfamiliar test box, without affecting other behavior. Isolated pups maintained high levels of vocalization over the 6-min test period while rapidly reducing other behavioral activities. A series of experimental(More)
OBJECTIVE To assess the impact of Family Nurture Intervention (FNI) on electroencephalogram (EEG) activity in preterm infants (26-34 weeks gestation). METHODS Two groups were tested in a single, level IV neonatal intensive care unit (NICU; standard care or standard care plus FNI) using a randomized controlled trial design. The intervention consists of(More)
Although depression and cognitive impairment have been associated with excess mortality following heart surgery, the relationship of these factors to death following treatment for cardiac arrhythmias is unknown. We prospectively examined the associations between biobehavioral factors, mortality, and arrhythmia manageability in 88 patients undergoing(More)