Developmental Psychobiology
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Infancy predictors of preschool and post‐kindergarten executive functionAbstract Little is known about factors that promote optimal development of executive function (EF) skills. The focus of this study was associations among early maternal behaviors, infant frontal brain electrical activity, and child EF at age 4 and following kindergarten. Infant frontal electroencephalogram was collected from 56 infants at 10 months of age and matern... ...
Developmental Psychobiology - Tập 55 Số 5 - Trang 530-538 - 2013
EEG power and coherence during preschoolers' performance of an executive function batteryAbstract The current study investigated a set of abilities collectively referred to as executive function (EF). Substantial improvement in EF ability occurs between 3 and 6 years of age (e.g., Carlson [2005] Developmental Neuropsychology, 28(2):595–616). This improvement is thought to reflect changes in brain development, especially in areas of prefrontal cortex and... ...
Developmental Psychobiology - Tập 53 Số 8 - Trang 771-784 - 2011
Preliminary evidence for the effects of environmental complexity on hybridization of rat brain RNA to rat unique DNAAbstract Hybridization to unique DNA by RNA from brain or liver of rats given varying degrees of experience was investigated. RNA from brain of environmentally enriched rats hybridized to more unique DNA than did brain RNA from nonenriched controls. No significant differences were observed with liver RNA. This provides preliminary evidence for an increased transcrip... ...
Developmental Psychobiology - Tập 8 Số 2 - Trang 171-178 - 1975
Temporal dynamics of arousal and attention in 12‐month‐old infantsABSTRACT Research from the animal literature suggests that dynamic, ongoing changes in arousal lead to dynamic changes in an individual's state of anticipatory readiness, influencing how individuals distribute their attention to the environment. However, multiple peripheral indices exist for studying arousal in humans, each showing change on ...
Developmental Psychobiology - Tập 58 Số 5 - Trang 623-639 - 2016
The development of the EEG in the ratAbstract The development of the electroencephalogram EEG and, especially, behavioral state‐specific EEG patterns was studied in white and black hooded rats of the Lister strain, aged 9‐30 days. Movements of the rat were recorded and the behavioral state was monitored by means of a push‐button device. The EEG was collected when the rat was in State 1 (regular respira... ...
Developmental Psychobiology - Tập 9 Số 6 - Trang 501-515 - 1976
The development of intersession habituation and emergence in socially reared and isolated ratsAbstract Male and female hooded rats were weaned at 17 days and then reared in isolation or in social groups. Intersession habituation of locomotor activity in the open field was tested at 15, 25, and 45 days. Contrary to some previous reports, the 15‐day‐old animals showed significant habituation. At 45 days, however, the isolates showed very little habituation com... ...
Developmental Psychobiology - Tập 8 Số 6 - Trang 553-559 - 1975
Odor‐aversion learning by rats following LiCl exposure: Ontogenetic influencesAbstract The influence of LiCl preexposure on odor‐aversion conditioning produced by an odor‐LiCl pairing was studied in rats 7–31 days old. LiCl preexposure interfered with the acquisition of the odor aversion in both young and old pups. The time course of this effect depended, however, on the age of the pups. It lasted much longer (over 24 hr) if pups 8–17 days ol... ...
Developmental Psychobiology - Tập 16 Số 1 - Trang 13-22 - 1983
Conditioning of aversion to alcohol orosensory cues in 5‐ and 10‐day rats: Subsequent reduction in alcohol ingestionAbstract Two experiments examined in 5‐ and 10‐day‐old rat pups the impact of alcohol olfactory aversions upon subsequent alcohol intake. In Experiment 1 it was observed that at both ages, animals given a single pairing of alcohol odor and LiCl subsequently consumed less alcohol than those in any of 4 control conditions (alcohol odor unpaired with LiCl, alcohol odor... ...
Developmental Psychobiology - Tập 19 Số 3 - Trang 175-183 - 1986
Sensory modulation of juvenile play in ratsAbstract A series of experiments was conducted to determine the extent to which somatosensory stimulation is necessary for the elaboration of juvenile play in rats. Anesthetization of the dorsal body surface of juvenile rats with xylocaine reduced the frequency of pinning, an indicator variable for play, by 35% to 70%, while motivation to play, as measured by dorsal... ...
Developmental Psychobiology - Tập 20 Số 1 - Trang 39-55 - 1987
A dual systems model of adolescent risk‐takingAbstract It has been hypothesized that reward‐seeking and impulsivity develop along different timetables and have different neural underpinnings, and that the difference in their timetables helps account for heightened risk‐taking during adolescence. In order to test these propositions, age differences in reward‐seeking and impulsivity were examined in a socioeconom... ...
Developmental Psychobiology - Tập 52 Số 3 - Trang 216-224 - 2010
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