The Behavioral Development of Thoroughbred Foals and the Relationship between Dams and Foals

1984 ◽  
Vol 55 (4) ◽  
pp. 263-271
Author(s):  
Ryo KUSUNOSE ◽  
Hiroshi SAWAZAKI
1981 ◽  
Vol 52 (1) ◽  
pp. 219 ◽  
Author(s):  
Robert E. Lasky ◽  
Robert E. Klein ◽  
Charles Yarbrough ◽  
Patricia L. Engle ◽  
Aaron Lechtig ◽  
...  

2006 ◽  
Vol 99 (1) ◽  
pp. 3-19 ◽  
Author(s):  
Judith S. Brook ◽  
David W. Brook ◽  
Yuming Ning ◽  
Martin Whiteman ◽  
Stephen J. Finch

2018 ◽  
Vol 42 (6) ◽  
pp. 535-542
Author(s):  
Jessica Buthmann ◽  
Jackie Finik ◽  
Yoko Nomura

The present study examines the relationship between sex, infant temperament, and childhood psychophysiological reactivity via electrodermal activity (EDA). Both temperament and EDA are known to be relatively stable traits across the lifespan reflecting individual reactivity and regulation linked to suboptimal behavioral development and risk for psychopathology. However, little is known about the role of sex in the relationship between temperament and EDA. As a part of a larger longitudinal study of behavioral development, 125 participants were followed from birth until the age of 3 years to examine the relationship between temperament and psychophysiological reactivity in different sex groups. Measurements of temperament at age 6 months, and EDA, via skin conductance response (SCR) rate to a series of six startling auditory stimuli at 3 years of age were collected. Median splits of SCR rate and three temperament dimensions (positive affect, negative affect, and regulation) were created to designate high/low groups. Results indicate sex moderated the relationships between temperament traits and SCR rates. Specifically, low positive affect was associated with an increased risk for high psychophysiological reactivity in boys (odds ratio = 3.8), whereas high regulation was associated with an increased risk for greater reactivity in girls (odds ratio = 4.2). While preliminary, these findings suggest the importance of sex in relation to psychophysiological and temperamental reactivity, risk factors for developmental psychopathology. As our participants age, follow-up research to investigate the stability of these associations will provide valuable insights for the potential of EDA as a psychophysiological marker for developmental psychopathology risk in young children.


2019 ◽  
Vol 10 (5) ◽  
pp. 522-528
Author(s):  
Elena C. Tore ◽  
Evangelia E. Antoniou ◽  
Keith Reed ◽  
Taunton R. Southwood ◽  
Luc Smits ◽  
...  

AbstractMaternal pre-pregnancy weight has been related with young singletons’ cognitive and behavioral development, but it is not clear if it has an effect on temperament. We used a twin cohort to evaluate the association between maternal pre-pregnancy body mass index (BMI) and infants’ temperament. The mothers of 834 twins answered questions regarding their pre-pregnancy BMI and their 0- to 18-month-old children’s temperament using the Revised Infant Behavior Questionnaire. Three temperamental dimensions were examined: activity level, distress to limitation and duration of orienting. The relationship between maternal pre-pregnancy BMI and each temperamental component was investigated by means of multilevel mixed-effects linear regression analysis. We found no clear evidence of an association of maternal pre-pregnancy BMI with twins’ temperament. The development of temperament is influenced by a large number of factors, probably different from those influencing children’s emotional and behavioral development.


1967 ◽  
Vol 31 ◽  
pp. 239-251 ◽  
Author(s):  
F. J. Kerr

A review is given of information on the galactic-centre region obtained from recent observations of the 21-cm line from neutral hydrogen, the 18-cm group of OH lines, a hydrogen recombination line at 6 cm wavelength, and the continuum emission from ionized hydrogen.Both inward and outward motions are important in this region, in addition to rotation. Several types of observation indicate the presence of material in features inclined to the galactic plane. The relationship between the H and OH concentrations is not yet clear, but a rough picture of the central region can be proposed.


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