Pro-fono : revista de atualizacao cientifica最新文献_第2页

Story organization and narrative by school-age children with typical language development. 具有典型语言发育的学龄儿童的故事组织与叙事。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400024

Ana Carolina Paiva Bento, Debora Maria Befi-Lopes

{"title":"Story organization and narrative by school-age children with typical language development.","authors":"Ana Carolina Paiva Bento, Debora Maria Befi-Lopes","doi":"10.1590/s0104-56872010000400024","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400024","url":null,"abstract":"Background: The narrative abilities provide valuable information about the linguistic, cognitive and social development of school-age children with typical language development (TLD).Aim: To examine the temporal ordering of figures and the narrative abilities of school-age children with TLD in relation to the type of discourse presented.Method: Participants of this study included 60 children with TLD aged between seven and ten years of age. Fifteen stories were used in the study. Each story was illustrated by four figures. The sequences of figures were created and classified as mechanical, behavioral and intentional according to the relationships presented among the characters. Data were transcribed and analyzed regarding the type of discourse (descriptive, causal and intentional) and the type of organization of the figures.Results: No differences between age groups were observed for temporal ordering. For all age groups, the most frequently presented discourse type was the causal one. Statistically significant differences were observed among age groups for the causal and intentional discourse type. Inasmuch as the age increased, school-age children with TLD reduced the use of the descriptive discourse and increased the use of the intentional one.Conclusion: The ability of temporal ordering is already developed in children with TLD at seven-years of age. The type of discourse was influenced by age and by the type of story presented.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"503-8"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29630280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

School-aged children's performance in the Brazilian adaptation of the reading processes assessment. 学龄儿童在巴西适应性阅读过程中的表现评估。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400033

Adriana Marques de Oliveira, Simone Aparecida Capellini

{"title":"School-aged children's performance in the Brazilian adaptation of the reading processes assessment.","authors":"Adriana Marques de Oliveira, Simone Aparecida Capellini","doi":"10.1590/s0104-56872010000400033","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400033","url":null,"abstract":"Background: Brazilian adaptation of the reading processes assessment (Prolec).Aim: To characterize and compare the performance of students from public and private teaching institutions from the 1st to the 4th grades in the adaptation of the reading processes assessment (Prolec).Method: 262 students from the 1st to the 4th grades of elementary school participated in this study. Participants were distributed as follows: Group I (GI) consisted of 122 students from the 1st to the 4th grades of public elementary schools and Group II (GII) consisted of 140 students from the 1st to the 4th grades of private elementary schools. The adapted version of the reading processes assessment (Prolec) was applied.Results: The results indicated that GII performed better in tests of sound identification, word choosing, words reading, low-frequency words reading, pseudo-words reading, sentences comprehension and text comprehension. Both groups presented a lower performance than the expected in Prolec tests Spanish version.Conclusions: The adaptation of the Prolec to the Brazilian reality appears to be appropriate for the establishment of a reading profile of students, from public and private teaching institutions, who are undergoing the initial phase of literacy.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"555-60"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29629606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Long latency auditory evoked potentials in children with phonological disorder. 语音障碍儿童的长潜伏期听觉诱发电位。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400034

Renata Aparecida Leite, Haydée Fiszbein Wertzner, Carla Gentile Matas

{"title":"Long latency auditory evoked potentials in children with phonological disorder.","authors":"Renata Aparecida Leite, Haydée Fiszbein Wertzner, Carla Gentile Matas","doi":"10.1590/s0104-56872010000400034","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400034","url":null,"abstract":"Background: Auditory evoked potentials in children with phonological disorder.Aim: To characterize the long latency auditory evoked potentials (LLAEP) results N1, P2, N2 and P300 of children with phonological disorder and to verify the improvement of such potentials with speech therapy.Method: 25 children without phonological disorder (control group) and 41 with phonological disorder (study group) underwent a basic audiological evaluation and LLAEP. The study group was divided into two subgroups: subgroup A composed by 22 children, underwent 12 sessions of speech therapy and were submitted to audiological retesting after this period, and subgroup B composed by 19 children, who were also reassessed three months after the initial testing.Results: Statistically significant differences between groups for the P2 and P300 latencies and P300 amplitude were observed. Comparison between the first and the second audiological assessments indicated no significant statistical differences between both subgroups regarding wave latencies. However, a significant statistical difference was verified for the P300 (study subgroup A) and P2/N2 (study subgroup B) wave amplitudes. The study group presented higher percentage of altered results in the P300; wave latency increase was the most frequent type of alteration. After speech therapy, the results of all components improved, however, there was no association between the improvement of LLAEP results with the background of otitis, as well as with the Percentage of Consonants Correct-Revised.Conclusion: Children with phonological disorder present altered P300 suggesting involvement of the central auditory pathway, probably due to alterations in the auditory processing, presenting improvement in all components of LLAEP results after speech therapy.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"561-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29629607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22

Acclimatization effect in speech recognition: evaluation without hearing aids. 语音识别中的适应效应:无助听器评估。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400031

Sinéia Neujahr dos Santos, Tiago Petry, Maristela Julio Costa

{"title":"Acclimatization effect in speech recognition: evaluation without hearing aids.","authors":"Sinéia Neujahr dos Santos, Tiago Petry, Maristela Julio Costa","doi":"10.1590/s0104-56872010000400031","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400031","url":null,"abstract":"Background: After the adaptation of hearing aids, an improvement in speech understanding is expected to occur, called acclimatization.Aim: To determine the effect of acclimatization in sentences recognition threshold, for the conditions of silence (SRTQ) and noise (SRTN), in new users of hearing aids, evaluated prior to and after acclimatization, without the use of the hearing aids.Method: Participants were 40 individuals, aged between 28 and 78 years, with mild to moderate sensorineural hearing loss. Tests were conducted in three sessions: prior to the adaptation of the hearing aids, fourteen days and three months later.The Portuguese Sentences Lists test in free field was used for testing, and the SRTQ and SRTN were obtained (with noise level settled at 65 dB A). Results were expressed through the signal/noise ratios.Results: The mean values for the SRTQ in the 1st, 2nd and 3rd sessions were 54.43, 51.71 and 52.22 dB A respectively,. The mean signal/noise ratios for the 1st, 2nd and 3rd sessions were 1.67, 0.30 and -0.03 dB A. When comparing the results obtained between the testing sessions, a statistically significant difference was observed between the 1st and 2nd sessions, and between the 1st and 3rd sessions for the values obtained in the testing conditions of silence and noise.Conclusion: There was a progressive reduction of sentences recognition thresholds and signal/noise ratios indicating an improvement in performance even when assessing the individuals without the hearing aids. This improvement can be related to the effect of acclimatization.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"543-8"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29629608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Oral language disorders and enuresis in children. 儿童口腔语言障碍与遗尿。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400017

Thelma Kilinsky Birenbaum, Maria Claudia Cunha

{"title":"Oral language disorders and enuresis in children.","authors":"Thelma Kilinsky Birenbaum, Maria Claudia Cunha","doi":"10.1590/s0104-56872010000400017","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400017","url":null,"abstract":"Background: Co-occurrence of oral language disorders and enuresis in children.Aim: To identify and analyze the relationship between instances of oral language disorders and enuresis in children.Method: Clinical, quantitative and qualitative study, with a descriptive/interpretative outline, presented through two distinct situations. \"Situation 1\" refers to a group of 120 children between 3:0 and 10:0 years old, independently of gender and age, from a philanthropic Institution in Greater São Paulo. \"Situation 2\" refers specifically to the evaluation of children who have oral language disorders and enuresis.Results: Results indicated that enuretic children present a higher percentage of oral language disorders when compared to non-enuretic children, especially phonological disorders and talking very little. These results support the studies on co-occurrence of enuresis and oral language disorders, presented in papers that attribute a bio-psychic etiology to this co-morbidity.Conclusion: Results indicated a relationship between enuresis and oral language disorders. Considering the interactions among language, body and psyche, it is suggested that speech therapists, when dealing with oral language disorders in children, also investigate the acquisition of their bladder sphincter control, in a bio-psychical approach.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"459-64"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29629533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

(Central) auditory processing disorders in individuals with and without dyslexia. 有或没有阅读障碍的个体的(中枢)听觉处理障碍。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400027

Mariana Buncana Simões, Eliane Schochat

{"title":"(Central) auditory processing disorders in individuals with and without dyslexia.","authors":"Mariana Buncana Simões, Eliane Schochat","doi":"10.1590/s0104-56872010000400027","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400027","url":null,"abstract":"Background: Comparison of (central) auditory processing disorders in children with and without dyslexia.Aim: To compare the (central) auditory processing disorders in Brazilian children with and without dyslexia using speech in noise, dichotic digits and pattern of frequency tests.Method: Forty-five children with ages ranging between 7:0 and 12:11 years were assessed; twenty children composed the dyslexic group and twenty composed the (Central) auditory processing disorder group. The tests used involved closing aural, auditory figure-ground and temporal ordering abilities.Results: Individuals of the (Central) auditory processing disorder group presented a higher alteration probability in the speech in noise and dichotic digits tests than those from the dyslexic group.Conclusion: Subjects from the dyslexic group presented different patterns of (central) auditory processing disorder, with greater alteration in the tests that evaluate the temporal processing when compared to the tests that evaluate other auditory abilities.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"521-4"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29629673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 21

Correlation between tracheoesophageal voice and speech and intraluminal pharyngoesophageal transition pressure. 气管食管声、语与腔内咽-食管过渡压的关系。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400021

Telma Kioko Takeshita, Henrique Ceretta Zozolotto, Hilton Ricz, Roberto Oliveira Dantas, Lílian Aguiar-Ricz

{"title":"Correlation between tracheoesophageal voice and speech and intraluminal pharyngoesophageal transition pressure.","authors":"Telma Kioko Takeshita, Henrique Ceretta Zozolotto, Hilton Ricz, Roberto Oliveira Dantas, Lílian Aguiar-Ricz","doi":"10.1590/s0104-56872010000400021","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400021","url":null,"abstract":"Background: Rehabilitation of individuals with total laryngectomy.Aim: To correlate the voice and speech proficiency of individuals with total laryngectomy, users of tracheoesophageal, prosthesis with the intraluminal pharyngoesophageal transition pressure at rest and during phonation.Method: Twelve individuals with total laryngectomy and with tracheoesophageal voice, users of speech prosthesis, were submitted to a voice and speech sample gathering and registration. These individuals were assessed by three experts using a specific protocol for the evaluation of tracheoesophageal communication. Individuals also underwent esophageal manometry in order to evaluate the intraluminal pharyngoesophageal transition pressure during rest and phonation.Results: During phonation, individuals who had been characterized by the experts as good speakers (16.7%) presented average values of pressure amplitude during pharyngoesophageal transition of 27.48 mmHg. Average amplitude of 30.63 mmHg was observed for individuals classified as moderate speakers (52.5%), and of 38.72 mmHg for individuals classified as poor speakers (30.8%). During rest, the good speakers presented an average pressure of 14.72 mmHg, the moderate speakers of 13.04 mmHg and the poor speakers of 3.54 mmHg.Conclusion: The good speakers presented the lowest amplitude values of pharyngoesophageal transition pressure during phonation. However, the pressure observed in the rest condition was higher for the good speakers and lower for the poor speakers, suggesting that the raise in the pharyngoesophageal transition pressure during phonation damages the quality of tracheoesophageal communication when using speech prosthesis.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"485-90"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29630276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Standardization of brainstem auditory evoked potential using a new device. 用新装置标准化脑干听觉诱发电位。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400010

Ilka do Amaral Soares, Pedro de Lemos Menezes, Aline Tenório Lins Carnaúba, Liliane Desgualdo Pereira

{"title":"Standardization of brainstem auditory evoked potential using a new device.","authors":"Ilka do Amaral Soares, Pedro de Lemos Menezes, Aline Tenório Lins Carnaúba, Liliane Desgualdo Pereira","doi":"10.1590/s0104-56872010000400010","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400010","url":null,"abstract":"Background: Standardization of Brainstem Auditory Evoked Potential (BAEP) using a new device.Aim: To standardize BAEP responses using a new device developed (NDD) in Brazil.Method: Analysis of absolute latencies, interpeaks and wave amplitudes of BAEP, using a new device developed to study normal-hearing groups (91 adults) and individuals (15 adults) with bilateral neurosensory hearing loss. Responses obtained in the EP15 hearing device/Interacoustics and the NDD were compared. For this, the following paramenters were used: non-filtered click of 100 microsecond (µs), totaling 2000 stimuli in rarefied polarity, stimulation frequency of 13.1 clicks/s, intensity of 80 decibels normalized hearing level (dB nHL), with a window of 10 milliseconds and bandpass filter between 100 and 3000 Hertz (Hz). Significance level was set at 0.05.Results: Absolute latency and interpeak means for 76 normal-hearing individuals with the NDD were: wave I=1.50, III=3.57, V=5.53, I-III=2.06, III-V=1.96 and I-V=4.02. When analyzing results according to gender, there was a statistically significant difference for the absolute latencies of waves III and V and in interpeaks I-III and I-V. Mean amplitude value of wave I=0.384 microvolt (µV) and of wave V=0.825 µV. There was no statistically significant difference between the absolute latencies and interpeaks of the two devices in the same individual.Conclusion: The components of BAEP with the NDD in normal-hearing subjects were similar regarding the tested ears, with statistically lower latencies in women. The BAEP latencies in the same individual with NDD were similar to those obtained with the EP15 / Interacoustics. Normal values of BAEP were obtained in normal-hearing adults.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"421-6"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29629529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Spectral findings for vowels [a] and [ã] at different velopharyngeal openings. 元音[a]和[ã]在不同腭咽开口处的频谱发现。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400026

Aveliny Mantovan Lima-Gregio, Jeniffer de Cássia Rillo Dutka-Souza, Viviane Cristina de Castro Marino, Maria Inês Pegoraro-Krook, Plínio Almeida Barbosa

{"title":"Spectral findings for vowels [a] and [ã] at different velopharyngeal openings.","authors":"Aveliny Mantovan Lima-Gregio, Jeniffer de Cássia Rillo Dutka-Souza, Viviane Cristina de Castro Marino, Maria Inês Pegoraro-Krook, Plínio Almeida Barbosa","doi":"10.1590/s0104-56872010000400026","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400026","url":null,"abstract":"Background: The size control of velopharyngeal opening is an important variable for the acoustic profile characterization of hypernasal speech.Aim: To investigate frequency spectral aspects of F1, F2, F3, nasal formant (FN) and anti-formant, in Hertz, for vowels [a] and [ã] at different velopharyngeal openings produced in the bulb of a palatal prosthesis replica used by a patient with velopharyngeal insufficiency.Method: Speech recordings were obtained for four words (\"pato/mato\" and \"panto/manto\") produced within a carrier phrase in 5 conditions of velopharyngeal functioning: prosthesis with no openings (control condition: CC); prosthesis with bulb opening of 10 mm² (experimental condition with 10 mm² opening: EC10), prosthesis with a 20 mm² opening (EC20), prosthesis with a 30 mm² opening (EC30), and without the prosthesis (ECO). Five speech-language pathologists made a live rating of speech nasality during the reading of an oral passage. The recordings were used for spectral analysis.Results: F1 values were significantly higher for [a] when compared to [ã] in all conditions. F2 values for [a] in EC20 and EC30 were significantly lower than values in the other conditions, being closer to the values presented for [ã]. F3 values were not significantly different between the testing conditions. There was a relationship between FN and anti-formants, and the auditory perception of nasality for conditions EC10 and EC20.Conclusion: Significant changes were observed in the studied spectral values according to changes in the velopharyngeal opening size.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"515-20"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400026","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29629668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Brainstem auditory evoked potential with speech stimulus. 言语刺激下的脑干听觉诱发电位。

Pro-fono : revista de atualizacao cientifica Pub Date : 2010-10-01 DOI: 10.1590/s0104-56872010000400020

Caroline Nunes Rocha, Renata Filippini, Renata Rodrigues Moreira, Ivone Ferreira Neves, Eliane Schochat

{"title":"Brainstem auditory evoked potential with speech stimulus.","authors":"Caroline Nunes Rocha, Renata Filippini, Renata Rodrigues Moreira, Ivone Ferreira Neves, Eliane Schochat","doi":"10.1590/s0104-56872010000400020","DOIUrl":"https://doi.org/10.1590/s0104-56872010000400020","url":null,"abstract":"Background: Although clinical use of the click stimulus for the evaluation of brainstem auditory function is widespread, and despite the fact that several researchers use such stimulus in studies involving human hearing, little is known about the auditory processing of complex stimuli such as speech.Aim: To characterize the findings of the Auditory Brainstem Response (ABR) performed with speech stimuli in adults with typical development.Method: Fifty subjects, 22 males and 28 females, with typical development, were assessed for ABR using both click and speech stimuli.Results: The latencies and amplitudes of the response components onset (V, A and complex VA), the area and slope that occur before 10 ms were identified and analyzed. These measurements were identified in all of the studied subjects and presented wave latency values (ms) of: V = 7.18 (SD = 1.08), A = 8.66 (SD = 1.13); Complex VA = 1.49 (SD = 0.43). For the wave amplitudes (µV), the values were: V = 0.29 (SD = 0.15), A = -0.3 (SD = 0.18); Complex VA = 0.58 (SD = 0. 25). The area measurements (µV X ms) and slope (µV / ms) were 0.27 (SD = 0.17) and 0.4 (SD = 0.17) respectively.Conclusion: Based on the gathered data it can be observed that this potential works as a new tool for understanding the encoding of sound at the brainstem level.","PeriodicalId":74581,"journal":{"name":"Pro-fono : revista de atualizacao cientifica","volume":"22 4","pages":"479-84"},"PeriodicalIF":0.0,"publicationDate":"2010-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s0104-56872010000400020","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"29630279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17