scholarly journals Reaction to background stimulation of preschool children who do and do not stutter

2007 ◽  
Vol 40 (2) ◽  
pp. 129-141 ◽  
Author(s):  
Krista A. Schwenk ◽  
Edward G. Conture ◽  
Tedra A. Walden
1975 ◽  
Vol 142 (5) ◽  
pp. 1327-1333 ◽  
Author(s):  
G Opelz ◽  
M Kiuchi ◽  
M Takasugi ◽  
P I Terasaki

The background stimulation universally seen when lymphocytes are cultured in vitro has been shown to be markedly lowered by reducing the proportion of B lymphocytes. B-rich fractions of lymphocytes had extremely high background stimulation. It is concluded that stimulation of T cells, probably by autologous B cells, provides the most probable explanation for the findings described.


1970 ◽  
Vol 131 (6) ◽  
pp. 1049-1078 ◽  
Author(s):  
W. H. Adler ◽  
T. Takiguchi ◽  
B. Marsh ◽  
R. T. Smith

The media and culture conditions required for in vitro stimulation of mouse lymphoid cells are described. The medium was arginine-rich and contained heat-inactivated human serum. A component of the human sera necessary for stimulation of the cells was a natural mouse cell agglutinin, which affected both background stimulation and the degree of induced stimulation with phytohemagglutinin (PHA). Absorption of the agglutinin from the human serum rendered the medium incapable of sustaining DNA synthesis in the presence of PHA. The response to PHA of mouse spleen and thymus cells was age-dependent and, although this response was not present at birth, it rapidly rose to adult levels. Spleen cells from mice immunized with bacillus Calmette-Guérin (BCG) or sheep erythrocytes (SRBC) showed increased in vitro reactivity to added purified protein derivative (PPD) or SRBC stroma, dependent on the time of immunization. The dose response curve for the SRBC stroma stimulated, immune spleen cells is compatible with a theory of cell to cell interaction being necessary for an in vitro reaction to antigen. The possible role of the mouse cell agglutinin (AMLG) is discussed.


2020 ◽  
Author(s):  
Nuria García-Magro ◽  
Pilar Negredo ◽  
Yasmina B. Martin ◽  
Angel Nuñez ◽  
Carlos Avendaño

Abstract Background: Stimulation of occipital or trigeminal nerves has been successfully used to treat chronic refractory neurovascular headaches such as migraine or cluster headache, and painful neuropathies. Convergence of trigeminal and occipital sensory afferents in the "trigeminocervical complex" (TCC) from cutaneous, muscular, dural, and visceral sources is a key mechanism for the input-induced central sensitization that may underlie the altered nociception. Both excitatory (glutamatergic) and inhibitory (GABAergic and glycinergic) mechanisms are involved in modulating nociception in spinal and medullary dorsal horn neurons, but the mechanisms by which nerve stimulation effects occur are unclear. This study was aimed at investigating the acute effects of electrical stimulation of the greater occipital nerve (GON) on the responses of neurons in the TCC to the mechanical stimulation of the vibrissal pad.Methods: Adult male Wistar rats were used. Neuronal recordings were obtained in laminae II-IV in the TCC in control, sham and infraorbital chronic constriction injury (CCI-IoN) animals. GON was isolated and electrically stimulated. Responses to stimulation of vibrissae by brief air pulses were analyzed before and after GON stimulation. In order to understand the role of neurotransmitters involved, specific receptor blockers of NMDA (AP-5), GABAA (bicuculline, Bic) and Glycine (strychnine, Str) were locally applied.Results: GON stimulation produced a facilitation of the response to light facial mechanical stimuli in controls, and an inhibition in CCI-IoN cases. AP-5 reduced responses to GON and vibrissal stimulation and blocked the facilitation of GON on vibrissal responses found in controls. The application of Bic or Str reduced significantly the facilitatory effect of GON stimulation on the response to vibrissal stimulation in controls. However, the opposite effect was found when GABAergic or Glycinergic transmission was prevented in CCI-IoN cases.Conclusions: GON stimulation modulates the responses of TCC neurons to light mechanical input from the face in opposite directions in controls and under CCI-IoN. This modulation is mediated by GABAergic and Glycinergic mechanisms. These results will help to elucidate the neural mechanisms underlying the effectiveness of nerve stimulation in controlling painful craniofacial disorders, and may be instrumental for identifying new therapeutic targets for their prevention and treatment.


2020 ◽  
pp. 157-168
Author(s):  
Soltys ◽  
Valentyna Benera

The article considers the phylogenetic principle as the core of the general principle of nature in relation to the physical development of preschoolers in normal and with special health capabilities. The phylogenetic logic of human biological formation is reflected in the sequence of individual ontogenetic development of the child, which proves the basic biogenetic law of Haeckel - Mueller. The methodological basis of Mykola Yefimenko's technology is this phylogenetic-ontogenetic sequence of formation of basic movements, which provides a fundamentally new approach to the physical development of preschool children. Physical education classes according to the innovative approach should start with lying-horizontal starting positions (lying, on all fours, sitting) and gradually become more complicated to vertical positions standing, walking, climbing, running and jumping. It is this evolutionary method of practice in the physical education of preschoolers will ensure the implementation of the main didactic principles: from simple - to complex, from easy - to difficult, gradual, consistent, imitation. A kind of evolutionary gymnastics should become not only an algorithm for conducting any form of physical education of preschoolers (from morning gymnastics awakening - to a sports holiday), but be the methodological basis of the whole system of planning physical development of children from nursery to senior group. The implementation of the principle of naturalness will be able to provide stimulation of mental development of preschool children on the basis of purposeful stimulation of attractor structures of the brain formed during human evolution. All this will be able to guarantee the full psychophysical development of the child as a person and in the future its successful socialization. Key words: nature correspondence principle, physical development, preschoolers, phylogenetic sequence, evolutionary method.


2019 ◽  
Vol 3 (2) ◽  
pp. 51
Author(s):  
Ni Komang Sri Ariani ◽  
Ni Putu Riza Kurnia Indriana

Parents as caregivers but also as educators should know that children from an early age begin to emerge new skills, both physical and mental skills. In parenting a child, parents need to understand what is happening to the child and recognize what the child needs for his development, as well as what things must be done to meet those needs. Objectives: to find out how the level of knowledge of mothers about the growth and development of preschool children aged 4-6 years. Methods: Descriptive using Non Probability Sampling, a sample of 40 respondents who met the inclusion criteria. Results: From 40 respondents, the majority of respondents aged 24-33 years, 25 respondents (62.5%) obtained data, and 19 respondents (47.5%) obtained high school education. Most respondents have a good level of knowledge about the stimulation of their children's growth and development, this can be seen from the results of the questionnaire all respondents answered statement number 1 correctly, meaning that all respondents understood about the meaning of growth and stimulation. Almost all respondents understand about the forms of stimulation, this can be seen from almost all respondents answering statements number 2 to number 9 correctly, only 5% of respondents answered incorrectly. Almost all respondents also have knowledge about stimulation in preschool children aged 4-6 years, this can be seen from almost all respondents answering statements number 11 to number 20 correctly, only 15 (%) respondents answered incorrectly. Discussion: Most respondents have a good level of knowledge about their children's growth and development stimulation.


2020 ◽  
Vol 8 ◽  
pp. 26-37
Author(s):  
Natalka Kotelianets ◽  
Yuliia Kotelianets

The article deals with the problem of preschool children’ formation of the creative activity. The author understands creative activity as integrative, qualitative characteristic of personality, which includes a complex of motivational, creative, volitional components. According to the selected indicators, a diagnostic methodology for the three main blocks was constructed. All indicators were evaluated by a 3-point system, in which each score expressed the content of the existing level of formation of diagnosed indicators. Four levels of creative activity of older preschool children are distinguished: high (creative), middle (research), below average (imitative), low (performing). It is established that the most unformed components of creative activity in preschool age are creative and volitional. It is substantiated that development of speed, flexibility and originality of thinking, as well as stimulation of children’s initiative and independence will allow to increase the level of creative activity.  


Author(s):  
Tri Sakti Widyaningsih ◽  
Tamrin Tamrin

Background: Children's social abilities do not develop automatically. Children who are not able to socialize are very likely to be rejected by other colleagues, so that the learning process will be hampered and fail in the world of education. RA Islamic Tunas Bangsa 4 Semarang City, accepts 5 year old children who have just entered the school environment. In schools there are no special programs to improve social development. Purpose: Therefore the aim of this study is to determine the effect of stimulating group interaction on the social development of preschool children in RA Islamic Tunas Bangsa 4 Semarang City. Research Methods: The research method used was a quasi experiment, with One Group Pretest and Posttest Design. Sampling using total sampling, namely 36 respondents. The intervention given was stimulation of group interactions for 2 weeks. Observation data collection 1 week after treatment and analyzed using the Wilcoxon test. The results showed that the value of Z hitung -2.333 and p value of 0.020 with a significant level of 5% Findings: H0 was rejected and Ha was accepted, meaning that there was an effect of stimulating group interaction on the social development of preschool children in RA Islamic Tunas Bangsa 4 Semarang City. Conclusion: Through stimulation of group interaction with the game of snakes and ladders, children are able to cooperate, adapt, interact positively, develop empathy for friends and respect for others


Perception ◽  
1976 ◽  
Vol 5 (3) ◽  
pp. 309-317 ◽  
Author(s):  
Michael J Morgan ◽  
Roger M Ward ◽  
Edward M Brussell

When observers tracked moving stripes across a background either of stationary stripes, or of stripes moving in the opposite direction, they saw a clear motion aftereffect when the stripes stopped moving. The direction of this aftereffect was opposite to that of the previously tracked stripes, and was thus the same as the direction of the retinal movement of the non-tracked stripes. This aftereffect of tracking was shown not to depend upon slippage of the tracked contours on the retina during tracking, or upon the saccadic phase of optokinetic nystagmus. The effect showed storage over a period of time with the eyes shut. It appears that the effect is due to induced movement, and arises originally from stimulation of the retina by background contours in the tracking phase. This was shown by confining the view of the moving target to one eye, while permitting both eyes to be exposed to background stimulation during tracking. After such stimulation the magnitude of the aftereffect was equal in the two eyes.


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