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1.
《The Journal of educational research》2012,105(3):157-168
AbstractForty-three second and third grade non-readers who were diagnosed as having visual perceptual deficiencies were randomly assigned to experimental and control groups. The experimental group received training in visual analysis, which included visual short-term memory, visual discrimination of letters and words, and remedial instruction. The control group received only remedial instruction. After seven months, there was no significant difference between the groups in visual perception or achievement of reading skills. However, there was a significant mean difference between pretest and posttest scores for both groups on all measures tested. Experimental subjects gained 8.9 months in reading achievement versus 9.2 months for controls, indicating that visual discrimination and visual memory of word training influenced the achievement of reading skills for this group to the same degree as did a remedial program without visual training. 相似文献
2.
One hundred and three children attending Learning Assistance Centres due to reading difficulties and one hundred and three matched, average readers were administered a battery of auditory perceptual processing tasks. The battery was composed of auditory analysis and synthesis, auditory sequential memory, auditory discrimination, and phonemic segmentation tasks. A principal components analysis yielded four factors. These were determined to be advanced phonological awareness, sequential memory, discrimination, and simple phonological awareness. Discriminant analyses, using the factor scores, indicated that three of the four factors were able to discriminate between the able and disabled readers. Most notable among these was advanced phonological awareness. Auditory discrimination could not discriminate between the groups. The results suggest that there may not be one underlying phonological ability implicated in successful reading acquisition. Furthermore, it is clear that two levels of phonological awareness exist and that screening and diagnostic instruments should address both in order to have predictive validity. 相似文献
3.
Joan A Helfgott 《Contemporary educational psychology》1976,1(2):157-169
This study explored the abilities of kindergarten children in segmenting and blending phonemic components of words and the relationship of these abilities to beginning reading acquisition measured by the word recognition subtest of the Wide Range Achievement Test (WRAT) and to auditory discrimination defined by performance on the Wepman Test of Auditory Discrimination. Random assignment of 103 kindergarten children to six experimental groups was used to evaluate phonemic segmentation and blending skills and to one control group to assess the relationship of these skills to auditory discrimination. Each experimental group received training in one of three types of word division (either C-V-C, CV-C or C-VC) for phonemic segmentation and blending in one of two task sequences (either blending first or segmentation first). Results indicate that segmentation is significantly more difficult than blending and that C-V-C is the most difficult of the three types of word division for both segmentation and blending. There were no significant differential effects of the training and control procedures on a pretest and posttest of the Wepman. Follow-up with the WRAT 1 year later indicated that C-V-C segmentation is a highly useful predictor of beginning reading acquisition. Implications for teaching of reading and for the interpretation of Wepman results are included. 相似文献
4.
The study investigated the effects of participation in the activities of Science-A Process Approach (SAPA) on the oral communication skills of disadvantaged kindergarten children. Experimental-control group, pretest-posttest research design was employed. The investigator designed the Test of Oral Communication Skills (TOCS) to measure students' oral communication skills. Two experimental groups (one morning and one afternoon, N = 52) and two control groups (one morning and one afternoon, N = 48) were randomly assigned from two kindergarten classrooms (morning and afternoon classes in each) in an inner-city school in Columbus, Ohio. The investigator provided the science instruction to all students. Experimental subjects received 22 half-hour lessons from exercises a through k of Part A, SAPA. Control subjects received 22 lessons from Springboards to Science, a teacher demonstration, class discussion type of kindergarten curricuoum used in the school system. The treatment period spanned 12 academic weeks. Analysis of variance of TOCS pretest scores showed no significant differences among any of the means of the four groups. Analysis of covariance of TOCS posttest scores revealed differences significant at .05 or beyond in the mean scores of the experimental groups and control groups for total oral and total receiving skills and for six of the eight subskills measured by TOCS. Application of the Tukey (b) test revealed that experimental group mean scores exceeded control group mean scores in every TOCS skill and subskill area and that in total oral transmitting subskills both experimental group mean scores were significantly greater at .05 level or beyond than corresponding mean scores for both control groups. Within the parameters of this study, it may be concluded that when the activities and teaching strategies of SAPA curriculum are presented to disadvantaged kindergarten children, their oral communication skills, especially the transmitting (speaking) skills, are clearly enhanced. 相似文献
5.
Perception of gated, highly familiar spoken monosyllabic nouns by children with and without learning disabilities 总被引：1，自引：0，他引：1
L L Elliott M E Scholl J O Grant M A Hammer 《Journal of learning disabilities》1990,23(4):248-52, 259
A forward-gating procedure employing highly familiar monosyllabic words was used in auditory testing of age- and gender-matched children with learning disabilities and normally achieving children aged 8 to 11 years. The portion of the word presented, or "gate," was longer on each successive trial. Nondisabled children identified an average of one more word than the children with learning disabilities, but the mean duration required for word identification did not differ between groups. Better receptive vocabulary scores were associated with identification of words at shorter durations only among the children with learning disabilities. The two groups of children had similar numbers of different meaningful-word and different non-word incorrect responses. The children with learning disabilities exhibited poorer fine-grained auditory discrimination than a control group of nondisabled children. The study concluded that auditory closure skills for the gating task were as good among children with learning disabilities as among nondisabled children, but that sensory discrimination problems may contribute significantly to the learning difficulties of the former group. 相似文献
6.
In Experiment I, one group of goldfish (TD) was trained to discriminate blue and green while a second group (PD) was exposed to the same colors in a “pseudodiscrimination,” after which both groups were reinforced for response to a tone. The TD group subsequently showed a sharper auditory discrimination gradient than the PD group and performed better in a differentially reinforced tone discrimination. The former PD animals then were given true discrimination training and the former TD animals pseudodiscrimination training with the colors, after which the first group showed better tone discrimination than the second. These results are analogous to those found in pigeons and rats. In Experiment II, goldfish which were trained in an easy color discrimination and shifted to a more difficult tone discrimination performed better than a control group trained from the outset with the tones. This result suggests that the dimensional specificity of the processes responsible for “transfer along a continuum” cannot safely be assumed in the absence of appropriate controls. 相似文献
7.
Mothers have an important role to play in teaching their children about sexual issues and shaping children’s sexual knowledge, attitudes and behaviours. In many cases, however, mothers themselves need help and support. This study was conducted to examine the effects of a sex education programme on the knowledge and attitudes of the mothers of pre-school children. Eighty mothers of pre-school children were randomly divided into an experimental and a control group. The experimental group received an education and training programme delivered over two 2-h sessions. The control group received no such intervention. Researcher-constructed knowledge and attitude questionnaires were completed by both groups before and one month after the intervention. Findings showed no significant differences between the two groups in terms of knowledge and attitudes before the training. After the education and training intervention, however, there was a significant increase in the mean score for both knowledge and attitudes in the experimental group compared to the control group. Study findings suggest that the sex education programme for the mothers of pre-school children can improve their knowledge and attitudes. 相似文献
8.
《Contemporary educational psychology》1998,23(2):132-148
The results of two evaluation studies with respect to a programme for enhancing inductive reasoning ability of third grade students are presented. The programme is a classroom version of the German programme ‘Denktraining für Kinder 1’ (Cognitive training for children; Klauer, 1989). In the first formative evaluation study, two experimental groups with 30 students in total and one control group with 9 students were involved. Observations during the lessons, and teachers' reports showed that teachers were able to implement the programme. Both experimental groups significantly outperformed the control group on a posttest immediately after the programme and on a follow-up test 3 1/2 months later. Further analyses of the data revealed tentative evidence of the superiority of a direct teaching method. In the second summative evaluation study, the same programme was applied to a larger sample (experimental groups: n = 99 in total; and control groups: n = 232 in total) of third grade students. On the basis of Study 1, the programme instructions were slightly changed. The experimental groups scored significantly higher on a posttest three months after completion of the programme. 相似文献
9.
Color discrimination ability can be determined through anatomy or perceptual ability. In this study we tested perceptual ability. Three Asian small-clawed otters (Aonyx cinerea), one male and two females, were trained via operant conditioning to discriminate stimuli within a training task. If they passed criteria for this task, they were tested on as many as six delayed matching-to-sample experimental tasks. These experimental tasks involved comparing varying saturations of the colors blue, green, and red against varying shades of gray, as well as against each other. The male reached criterion on five of the experimental tasks, indicating an ability to discriminate the stimuli. One female participated in only two tasks and did not achieve the criteria as set. The second female did not pass the training task, and thus was not experimentally tested. This study overall showed some early evidence that Asian small-clawed otters may have the ability to learn to discriminate different stimuli on the basis of color cues. Sensory studies conducted on two other otter species and the results of this study indicate that color vision may be a common trait across Lutrinae species. 相似文献
10.
The purpose of this study was to compare the efficacy of two auditory processing interventions for developmental dyslexia, one based on rhythm and one based on phonetic training. Thirty-three children with dyslexia participated and were assigned to one of three groups (a) a novel rhythmic processing intervention designed to highlight auditory rhythmic information in non-speech and speech stimuli; (b) a commercially-available phoneme discrimination intervention; and (c) a no-intervention control. The intervention lasted for 6 weeks. Both interventions yielded equivalent and significant gains on measures of phonological awareness (at both rhyme and phoneme levels), with large effect sizes at the phoneme level. Both programs had medium effect sizes on literacy outcome measures, although gains were non-significant when compared to the controls. The data suggest that rhythmic training has an important role to play in developing the phonological skills that are critical for efficient literacy acquisition. It is suggested that combining both prosodic/rhythmic and phonemic cues in auditory training programs may offer advantages for children with developmental dyslexia. This may be especially true for those who appear resistant to conventional phonics training methods. 相似文献
11.
In two experiments, we investigated the impact of odor preexposure treatments on the acquisition of an olfactory discrimination in dogs. In the first experiment, four groups of dogs were each given five days’ odor-exposure treatment prior to discrimination training. Dogs in the exposure group were exposed to anise extract (S+) for 30 min daily. Dogs in the Pavlovian-relevant pairing group received six daily delayed-conditioning trials to the same S+. The Pavlovian-irrelevant pairing group received conditioning trials to almond extract (S'). Dogs in the control group received no pretreatment. All of the dogs were then trained to detect S+ from a background pine odor (an AX-vs.-X discrimination). The Pavlovian-relevant pairing group acquired the odor discrimination significantly faster than all of the other exposure and control groups, and the remaining groups acquired the discrimination at the same rate as the no-exposure control group. In a second experiment, we extended these results to a within-subjects design using an AX-versus-BX discrimination. Six dogs were simultaneously trained on two different odor discriminations, one discrimination in which the S+ was previously Pavlovian conditioned, and one discrimination in which the S+ was novel. All of the dogs learned the odor discrimination with the previously conditioned S+ faster than they learned the novel odor discrimination, replicating the results of Experiment 1, and demonstrating that familiarity in the form of Pavlovian conditioning enhances odor-discrimination training. The potential mechanisms of the facilitated transfer of a Pavlovian conditioned stimulus to discrimination training are discussed. 相似文献
12.
In two experiments, we examined how preexposure to discriminative stimuli and introduction of a 21-day retention interval
affected the latent inhibition (LI) and perceptual learning (PL) of rats in a choice-maze discrimination task. Experimental
groups were preexposed to three wall patterns, one in each of three arms of a maze. Control groups were preexposed only to
white arms. PL groups were trained to discriminate A versus B, and LI groups, to discriminate A or B versus C. The A and B
patterns shared many elements not shared with the C pattern. In Experiment 1, both at the end of training and after the subsequent
retention interval, the PL groups performed better than controls, whereas the LI groups performed worse. In Experiment 2,
inserting the 21-day retention interval between preexposure and discrimination training disrupted final measures of LI but
not PL performance. Implications for current concepts of PL and LI are discussed. 相似文献
13.
Adult pigeons with one eye covered were trained to peck a response key using grain as a reinforcer. In subsequent tests, with the trained eye covered and the control eye open, the birds failed to peck the key. The subjects were then divided into two groups for a second experiment. The first group was trained on a single-key, peck/no-peck color discrimination task with the original control eye covered. When tested for interocular transfer of discrimination performance, these birds failed to respond at all. They were then trained to peck a blank response key with the training eye covered and the control eye open. Control-eye tests after this motor response training resulted in excellent transfer of color discrimination performance. The second group of subjects was trained to peck a blank key with first one eye covered and then the other, before monocular discrimination training was begun. These birds showed excellent transfer of discrimination performance during control-eye tests. These results show that, at least in the operant paradigm, motor response training does not transfer interocularly and this lack of transfer may interfere with transfer of discrimination performance. 相似文献
14.
A burgeoning interest in learning disabilities during the past five years has aroused educational interest in the hypothesized sequence of motor, perceptual, and symbolic development. The present research was undertaken to test the effectiveness of beginning training at the motor level for children having difficulty with the symbolic system of reading. First- and second grade children were screened on the Gates Primary Reading Test and all motor subtests of the Purdue Perceptual-Motor Survey. The final sample comprised 35 children randomly assigned to one of three treatment groups: Motor Training, Physical Education, and Reading Control. Variables of teacher differences, adult-child ratio, amount of physical activity, and Hawthorne effect were controlled for in the design. Kruskal-Wallis analysis of variance and an analysis of covariance on a parallel form of standardized reading test showed a consistent pattern of greater gains following motor training and reading activities, and minimal progress after the physical education treatment. It was hypothesized that this may reflect effects of structured experiences and more equal distribution of teacher-child interaction. Reading gains of the first-grade children were significantly greater than those of the second-graders beyond the 0.01 level, a result not explainable by ceiling effects. Implications of the slower progress of the older children were explored in terms of a need for focus on particular reading subskills across perceptual-motor-symbolic systems. 相似文献
15.
The performance of children and young adults with Down syndrome (DS) on reading subskills and nonword reading was investigated. The performance of the participants with DS (N = 42) was compared to that of typically developing (N = 36) peers matched on fluid intelligence abilities. The study accounted for the different depths in orthography presented by the two languages. The independent samples t-test, Mann–Whitney U-test, ANCOVA and correlation analysis were used to analyse the data. This study identified that the participants with DS had several strengths, such as nonword reading, visual discrimination (VD) and phonological awareness. Verbal short-term memory, visual perceptual processing skills other than VD and rhyming skills were identified as weaker in DS compared with the control group. Results call for educators to expose readers with DS to a phonological approach to reading while accommodating difficulties in VSTM. 相似文献
16.
We report data bearing on the ability of European starlings to generalize a serial auditory pitch pattern discrimination from one frequency range to another. In earlier research (e.g., Hulse & Cyrix, 1985), European starlings failed to generalize such a discrimination from one 1-octave range of frequencies to another 1-octave range above or below the initial training range. The starlings thus demonstrated a hitherto unknown phenomenon, thefrequency range constraint. In the present research, we first explored the frequency limits over which the range constraint might hold. The constraint was obtained after initial training in both a narrow (1÷2-octave) and a wide (3-octave) training range. The latter range encompasses a substantial portion of the entire frequency range audible to starlings. Therefore, the constraint is independent of the size of the training range. No known principles of stimulus discrimination or generalization account for the constraint. We also obtained further evidence on starlings’ sensitivity to relative pitch in auditory pattern perception. We used probe stimuli to explore pattern discrimination in narrow local regions of the wide frequency range. The probe data showed that, in spite of the frequency range constraint, the starlings were able to process pitch patterns on a relational basis. The results join earlier data indicating that both absolute and relative pitch processing may be involved in the natural auditory communication of songbirds. 相似文献
17.
Ola O. B⊘ 《Scandinavian Journal of Educational Research》2013,57(4):129-153
Abstract B?, O. 1978. General or Specific Learning of Figure‐Ground Perception. Scandinavian Journal of Educational Research 22, 129‐153. Two training programs, one for auditory and one for visual figure‐ground perception, were constructed. The training effect for each program was tested in small groups of 8 pupils and the gain compared with a control group. The pupils were partly from an institution for brain damaged children and partly from an institution for mentally retarded. The effect measured was the pre‐test‐post‐test difference on tests for auditory and for visual figure‐ground perception. Both training groups showed higher gain score than the control group on both tests, but the effect was significant only for visual training on visual figure‐ground perception. 相似文献
18.
Kindergarten children were given a salience-assessment task to determine each child's salience hierarchy for the dimensions of form, color, and position. The children were then assigned to either a control condition or one of 3 conditions providing different types of perceptual training with the child's least salient dimension. In a subsequent location recall task, children in all 3 training groups made significantly fewer errors recalling values of their least salient dimension than children in the control group. The results indicated that perceptual exposure alone was sufficient to increase the perceptual salience of the least salient dimension and its subsequent conceptual evaluation. 相似文献
19.
The present experiments examined transfer of training from visual to auditory sensory modalities in classical conditioning of the rabbit’s nictitating membrane response. Experiment 1 examined transfer from initial training with a single visual CS to subsequent auditory discrimination training, and Experiment 2 examined transfer from visual discrimination training to auditory discrimination training. The major findings were that (1) initial conditioning of a visual CS facilitated the overall rate of CR acquisition to the auditory CSs separate from the requirements for discrimination learning (Experiments 1 and 2), and (2) initial visual discrimination training facilitated auditory discrimination learning (Experiment 2). Thus, the animals appeared to encode separately both contiguous CS-US relations and CS+ versus CS? relations during initial visual training. The results are discussed with respect to theories of extradimensional transfer. 相似文献
20.
Two groups of albino rats were trained on a simultaneous pattern discrimination task, one with a classical procedure in which the discriminanda remained invariant throughout training, and the other with a fading procedure in which the final task was approached through a series of graduated steps. In a subsequent reversal stage, during which the initial positive stimulus became negative and vice versa, each group was subdivided so that half of the subjects in each original group received reversal training with the same procedure as during acquisition and the other half with the other method. Fading procedures yielded a more proficient performance on every occasion, independently of experimental stage or previous learning history. Results are analyzed in terms of favorable conditions offered by the procedure itself and of beneficial influences exerted over subsequent learning. 相似文献