Search Results
Results 401 - 450 of 645
< 4 5 6 7 8 9 10 11 12 13 >
Mayer I - - 1997
Breeding in the three-spined stickleback is stimulated by long but not by short photoperiods in many seasons. The aim of the present study was to test the hypothesis that melatonin plays a role in the inhibitory effect of short photoperiod in this species. Adult nonbreeding males were kept either under ...
Bell M A - - 1997
This work was designed to investigate individual differences in hands-and-knees crawling and frontal brain electrical activity with respect to object permanence performance in 76 eight-month-old infants. Four groups of infants (one prelocomotor and 3 with varying lengths of hands-and-knees crawling experience) were tested on an object permanence scale in a ...
Moore D S - - 1997
In this study, the authors demonstrated that 6-month-old infants are able to categorize natural, 650 Hz low-pass filtered infant-directed utterances. In Experiment 1, 24 male and 24 female infants heard 7 different tokens from 1 class of utterance (comforting or approving). Then, some infants heard a novel test stimulus from ...
McVeigh C - - 1997
This study explored the early motherhood experiences of 79 first-time mothers. All women reported normal pregnancies and deliveries, delivered healthy infants at term, and were surveyed at 6 weeks postpartum using the Inventory of Functional Status After Childbirth. Mothers' written comments were subjected to a content analysis, and much of ...
Grotstein J S - - 1997
The ancient Greek myth linking the images of the labyrinth and the Minotaur provides an allegory for Melanie Klein's conception of the archaic Oedipus complex as well as a vivid illustration of Winnicott's notions of object usage and the 'subjective object'. The labyrinth is suggestive of mother's body as the ...
Henderson J W JW Department of Ophthalmology, Mayo Clinic Rochester, MN 55905, - - 1997
Approximately 14 years elapsed between Sir Alexander Fleming's discovery of penicillin (in 1928) and its full-scale production for therapeutic use (in 1942) in World War II. The following factors were responsible for the delay: a scientific explanation of Fleming's "phenomenon," classification of the fungus secreting the active substance, source of ...
Frank M G - - 1997
The authors investigated whether accuracy in identifying deception from demeanor in high-stake lies is specific to those lies or generalizes to other high-stake lies. In Experiment 1, 48 observers judged whether 2 different groups of men were telling lies about a mock theft (crime scenario) or about their opinion (opinion ...
Oakes L M - - 1997
In 3 experiments, the authors used an object-examining task to investigate the role of perceptual similarity in infants' categorization. In Experiment 1, infants were familiarized with a set of either perceptually similar or perceptually variable exemplars from 1 category and tested with novel exemplars from both categories. Ten-month-olds did not ...
Trehub S E - - 1997
Mothers and fathers sang a song of their choice, once to their infant and once as if to their infant (simulated). The pitch of songs was higher and the tempo slower for infant-directed than for simulated versions. Listeners varying in child-care experience, musical background, and cultural origin reliably identified which ...
Floccia C - - 1997
This study seeks to determine whether newborns are sensitive to an operant-conditioning task involving an unprepared relation between a response and a stimulus. The High-Amplitude Sucking procedure, which is based on such a relation by reinforcing nonnutritive sucking with auditory stimulation, was used. In order to verify that newborns learn ...
Needham A - - 1997
Two experiments examined 8-month-old infants' use of configural and physical knowledge in segregating three-dimensional adjacent displays. The infants in Experiment I saw two identical yellow octagons standing side by side: in the test events, a hand grasped the right octagon and pulled it to the side. The infants looked reliably ...
Masin S C - - 1997
In two experiments the luminance conditions for the occurrence of phenomenal transparency in achromatic flat patterns was studied. Let a, p, q and b be, respectively, the luminances of the parts A, P, Q, and B of a pattern comprising a transparent square on a two-part background, where P and ...
Adolph K E - - 1997
Infants master crawling and walking in an environment filled with varied and unfamiliar surfaces. At the same time, infants' bodies and skills continually change. The changing demands of everyday locomotion require infants to adapt locomotion to the properties of the terrain and to their own physical abilities. This Monograph examines ...
Harmon-Jones E - - 1997
On the basis of the terror management theory proposition that self-esteem provides protection against concerns about mortality, it was hypothesized that self-esteem would reduce the worldview defense produced by mortality salience (MS). The results of Experiments 1 and 2 confirmed this hypothesis by showing that individuals with high self-esteem (manipulated ...
Travis F - - 1997
In two experiments, we investigated physiological correlates of transcendental consciousness during Transcendental Meditation sessions. In the first, experimenter-initiated bells, based on observed physiological patterns, marked three phases during a Transcendental Meditation session in 16 individuals. Interrater reliability between participant and experimenter classification of experiences at each bell was quite good. ...
Prescott J - - 1996
In humans, repeated oral stimulation with the irritant capsaicin produces sensitization or desensitization, depending on the temporal relationship and, to a lesser extent, the intensity of the stimuli. We have previously shown that zingerone, an irritant present in ginger, shows only desensitization across repeated samples, as well as following a ...
Schulman P H - - 1996
The inside of a picture of a uniformly gray tube drawn with black circles appears lighter than the outside. Coren and Komoda, who first described this illusion, argued that observers take illumination into account to infer that the inside is lighter. That is, the inside of the tube should receive ...
Bell M A - - 1996
Greenough's model of experience-expectant plasticity was used to examine EEG coherence among four groups of 8-month-old infants that varied in hands-and-knees crawling experience. Groups included prelocomotor infants, novice crawlers with 1-4 weeks experience, infants with 5-8 weeks, and long-term crawlers with 9+ weeks experience. Resting EEG was recorded from frontal, ...
Ishikawa Y - - 1996
An enclosed ecosystem which is stable on Earth will behave differently when brought into space. Micro-gravity and radiation will affect the dynamics of material circulation or the activities of small creatures of the ecosystem. One series of space experiments aiming to address such issues was planned in the United States ...
Jacoby M - - 1996
From a Jungian viewpoint the findings of modern infant research can be seen as dealing in minute detail with the process by which the Self, the archetype of order, becomes incarnated in the infant and organizes the individual's development and maturation in accordance with the facilitating environment. Viewing Lichtenberg's 'groundplan ...
Gaffney K F - - 1996
PURPOSE: To explore relationships between pregnant women's childhood experiences with discipline and 1) prenatal plans for disciplining own child and 2) later maternal-infant interactions DESIGN: Prospective correlation study. SETTING: Prenatal clinics and home visits PARTICIPANTS: Low-income pregnant women (N = 205) with a mean educational level of 12 years MAIN ...
Craton L G - - 1996
We explored infants' ability to perceive stationary, partially occluded objects as connected units (Experiments 1 and 2) with specific appearances (Experiment 3). In each experiment, the infants saw 2 test events involving what appeared to adults to be a tall rectangular object whose middle portion was hidden behind a narrow ...
Halldorsdottir S - - 1996
OBJECTIVE: The aim of this study was to explore the essential structure of the lived experience of childbearing, as seen from the perspective of women who have given birth. DESIGN, SETTING, AND PARTICIPANTS: The phenomenological perspective of qualitative research theory guided the methodological approach to the study, in which interactive ...
Carvell G E - - 1996
The importance of early tactile experience in the development of discriminative somatomotor function was assessed by examining the proficiency and movement strategies of rats raised without normal sensory inputs provided by their mystacial vibrissae. Infant-trimmed animals had their whiskers clipped daily from birth to 45 d of age, after which ...
Fawcett J - - 1996
The factor structure of the perception of birth scale (POBS) was explored using a sample of 320 women who had vaginal or unplanned cesarean deliveries. Exploratory factor analysis yielded a 25-item instrument with five factor-based subscales: Labor Experience, Delivery Experience, Delivery Outcome, Partner Participation, and Awareness. The total POBS demonstrated ...
Orgel S - - 1996
This paper begins with a discussion of Freud's central ideas on the feminine in his landmark paper, Female Sexuality (1931), written within months after his mother's death. It then traces the evolution of these ideas from the perspective of his own history from childhood to old age. Using some of ...
Lynch M P - - 1995
Full-term infants' performance in detection of melodic alterations appeared to be influenced by perceptual experience from 6 months to 1 year of age, and an experiment with infants born prematurely supported the hypothesis that experience affects music processing in infancy. These findings suggest parallel developmental tendencies in the perception of ...
Sunderland S J - - 1995
Previous studies have shown that exposure to long days followed by short days after 12 wk of age advances the onset of puberty in ewe lambs. The aim of this experiment was to determine whether or not puberty would be advanced by exposure of lambs to such a photoperiodic regime ...
Edmonds K E - - 1995
The effects of the presence or absence of the pineal gland and of melatonin administration were examined on testicular maintenance, regression, and recrudescence in adult male rice rats. Pinealectomy at the beginning of the study caused significant testicular regression in animals housed on both long (16L:8D) and short (12L:12D) photoperiods ...
Clarkson M G - - 1995
Two experiments assessed the effects of inharmonicity on 7- to 8-month-old infants' perception of the pitch of tonal complexes. A number of harmonic and inharmonic complexes were presented in a visually reinforced operant head turn procedure. In both experiments, infants demonstrated the ability to discriminate two harmonic complexes based on ...
Adolph K E - - 1995
This research examined how infants in early stages of walking determine whether a hill is safe or risky for locomotion. A psychophysical staircase procedure provided estimates of infants' physical ability to walk up and down slopes (2 degrees to 36 degrees), and a "go ration" indexed the accuracy of their ...
Mårs U - - 1995
Thiouracil and a few related drugs are known to be melanoma-seeking agents owing to specific incorporation into nascent melanin. The melanin-affinic properties are apparently due to binding to intermediates, preferably dopaquinone, produced in the melanin synthetic pathway by tyrosinase-catalysed oxidation of tyrosine. In the present paper, in vitro screening methods ...
Jusczyk P W - - 1995
This study examined 2-to 3 month-olds' representations of bisyllables. In 3 experiments, infants were familiarized with sets of bisyllables that either did or did not share a common consonant-vowel (CV) syllable. In Experiment 1, infants detected the presence of a new bisyllable in the test phase except when it shared ...
Robbins P A - - 1995
Although superficially similar, HVD appears to arise from different mechanisms in the awake animal as compared with the anesthetized animal. Consequently, the good evidence supporting a central site of action for hypoxia in the genesis of HVD in the anesthetized animal cannot be used as evidence for a central site ...
Floyd L - - 1995
This two-part study explored the home birth experiences of all full time practising community midwives within three health authorities. The study consisted of a self-completion questionnaire, followed by interviews with a random stratified sub-sample of the midwives. The study sample consisted of 56 midwives of whom 44 (78%) agreed to ...
Cygler M - - 1995
In this review we summarize some aspects of the enantiopreference of the lipase from Candida rugosa following structural analysis of complexes of this lipase with two enantiomers of an analog of a tetrahedral intermediate in the hydrolysis of simple esters. The analysis of the molecular basis of the enantiomeric differentiation ...
Zapletalová Z - - 1995
The presented study verifies the desensibilization effect and the plaque score influence of a therapeutical toothpaste Fluocaril bi-fluoré 250 applied in a chosen group of patients with sensitive exposed tooth necks. In the course of six-week application of the toothpaste Fluocaril bi-fluoré 250, a decrease of the sensitivity of the ...
Gaensbauer T J - - 1995
In this paper, five children who experienced traumas during the preverbal period are described. The clinical presentations are oriented around three questions: (1) What are the expectable symptomatic reactions of preverbal infants to trauma? (2) To what extent and in what forms are preverbal traumatic experiences retained in memory? and ...
Mitrani J L - - 1995
The term unmentalized experience is defined, elaborated, explicated, and illustrated with clinical examples from the analysis of adult patients. The origins of the author's conceptualization of the term are traced from Freud's early notion of the "anxiety equivalent" through the work of present-day object relations theorists. A model for the ...
Ellington C P - - 1995
Over the past decade, the importance of unsteady aerodynamic mechanisms for flapping insect flight has become widely recognised. Even at the fastest flight speeds, the old quasi-steady aerodynamic interpretation seems inadequate to explain the extra lift produced by the wings. Recent experiments on rigid model wings have confirmed the effectiveness ...
Britton R - - 1994
The authors describe Bion's use of the notion of the 'selected fact' in the evolution of analytic interpretations. They draw attention to the similarity between the emergence of a 'configuration' from a selected fact and the crystallisation of delusional certainty from an 'overvalued idea'. The risks to the patient of ...
Stoddart P A - - 1994
A postal survey of previous paediatric anaesthetic training, current paediatric experience and management of an infant pyloromyotomy was undertaken among consultant anaesthetists in the UK. A total of 851 questionnaires were returned, giving a response rate of 31%; 352 (41%) consultants had at least one paediatric list each week, 180 ...
Niedenthal P M - - 1994
The role of counterfactual thinking in 2 emotions--shame and guilt--was examined. In 1 series of studies, Ss read about situations evocative of shame and guilt or described personal experiences of guilt or shame. They then generated counterfactual alternatives to "undo" the distressing outcomes. Consistent with predictions derived from Tangney (1991), ...
Robinson J C - - 1994
The proper use of forceps or vacuum extractor, or both, remains a safe and effective modality in achieving the universal goal of a healthy mother and baby. Their use requires continued experience, sharing of information, and possibly attention to subtleties of design. This review looks at the current situation with ...
Arnold C E - - 1994
Physical aspects of the laboratory environment, such as type of cage or bedding, are often ignored by investigators but may be quite important for the animals. We examined whether golden hamsters preferred living in wire mesh floored, stainless steel cages or solid floored, plastic cages with corn-cob litter. Forty hamsters ...
Kinnunen T - - 1994
Do the verbal reports of deeply hypnotized Ss truthfully reflect their subjective experiences of hypnotic suggestions? Experiment 1 established that the electrodermal skin conductance response (SCR) provides an effective method for detecting deception in the laboratory equally well in hypnotized and nonhypnotized Ss. In Experiment 2, deeply hypnotized and simulating ...
D'Amato R J - - 1994
Thalidomide is a potent teratogen causing dysmelia (stunted limb growth) in humans. We have demonstrated that orally administered thalidomide is an inhibitor of angiogenesis induced by basic fibroblast growth factor in a rabbit cornea micropocket assay. Experiments including the analysis of thalidomide analogs revealed that the antiangiogenic activity correlated with ...
Feldman E - - 1994
The authors describe the evolution of the concept of envy since Freud's first account of penis envy. Influenced by Abraham, Klein stressed the importance of envy 'lato sensu', turning it into a major issue in both psychoanalytic theory and practice. Her final proposition that envy is a direct expression of ...
Spelke E S - - 1994
Experiments investigated whether infants infer that a hidden, freely moving object will move continuously and smoothly. Infants aged 6 and 10 months, like the 4-month-old infants in previous experiments, inferred that the object's path would be connected and unobstructed, in accord with the principle of continuity. In contrast, 4- and ...
Wheeley S - - 1994
In this paper, using a pluralistic perspective on the psyche, I consider theoretical formulations concerned with the development of the self in relation to the environment. This includes discussion about how the infant interacts with its maternal environment before birth and how observation of the foetus in the womb and ...
< 4 5 6 7 8 9 10 11 12 13 >