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- Publications
- Influence
Attachment, loss, and complicated grief.
Bereavement is a highly disruptive experience that is usually followed by a painful but time-limited period of acute grief. An unfortunate minority of individuals experience prolonged and impairing… Expand
Ultrasonic vocalization during social interaction and isolation in 2-weeek-old rats.
Two-week-old rats were found to emit very little ultrasound in their cage except during arrivals and departures of the mother, when average peak rates of approximately 1 ultrasonic pulse/rat/min were… Expand
Acquisition and expression of a socially mediated separation response
- H. Shair
- Psychology, Medicine
- Behavioural Brain Research
- 4 September 2007
Separation and reunion responses have been used to investigate social relationships in many species, including humans. When isolated from their mothers and siblings, infant rats vocalize in the… Expand
Ultrasonic Vocalizations in Rat and Mouse Pups
- M. Hofer, H. Shair, S. Brunelli
- Psychology, Medicine
- Current protocols in neuroscience
- 1 October 2001
The ultrasonic vocalization (USV), or isolation calling response, of infant rats and mice has been studied as a measure of the intensity of an aversive affective state and as an early communicative… Expand
Hypothermic vocalizations of rat pups (Rattus norvegicus) elicit and direct maternal search behavior.
- S. Brunelli, H. Shair, M. Hofer
- Biology, Medicine
- Journal of comparative psychology
- 1 September 1994
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… Expand
Sensory processes in the control of isolation-induced ultrasonic vocalization by 2-week-old rats.
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.… Expand
The ontogeny of maternal potentiation of the infant rats' isolation call.
- M. Hofer, J. Masmela, S. Brunelli, H. Shair
- Psychology, Medicine
- Developmental psychobiology
- 1 November 1998
Previous studies have shown that preweanling rat pups double or triple their rates of ultrasonic vocalization (USV) when isolated immediately after brief periods of maternal interaction… Expand
The Role of the Medial Prefrontal Cortex in Innate Fear Regulation in Infants, Juveniles, and Adolescents
- Thomas E. Chan, Kwaku A Kyere, +5 authors C. Wiedenmayer
- Psychology, Medicine
- The Journal of Neuroscience
- 30 March 2011
In adult animals, the medial prefrontal cortex (mPFC) plays a significant role in regulating emotions and projects to the amygdala and periaqueductal gray (PAG) to modulate emotional responses.… Expand
Relationships between maternal behavior of SHR and WKY dams and adult blood pressures of cross-fostered F1 pups.
- M. Myers, S. Brunelli, H. Shair, J. Squire, M. Hofer
- Psychology, Medicine
- Developmental psychobiology
- 1989
In this experiment SHR and WKY dams reared genetically identical F1 pups derived from SHR x WKY matings. We found that a composite maternal behavior score was positively correlated with adult blood… Expand
Effects of infraorbital nerve section on survival, growth, and suckling behaviors of developing rats.
- M. Hofer, A. Fisher, H. Shair
- Psychology, Medicine
- Journal of comparative and physiological…
- 1 February 1981
Previous studies on sensory control of nursing in the rat have emphasized local olfactory cues. This study examined the role of tactile sensory processes by surgical section of the infraorbital nerve… Expand