scholarly journals Deficits in Voice-Identity ProcessingAcquired and Developmental Phonagnosia

Author(s):  
Claudia Roswandowitz ◽  
Corrina Maguinness ◽  
Katharina von Kriegstein

The voice contains elementary social communication cues, conveying speech, as well as paralinguistic information pertaining to the emotional state and the identity of the speaker. In contrast to vocal-speech and vocal-emotion processing, voice-identity processing has been less explored. This seems surprising, given the day-to-day significance of person recognition by voice. A valuable approach to unravel how voice-identity processing is accomplished is to investigate people who have a selective deficit in recognizing voices. Such a deficit has been termed phonagnosia. This chapter provides a systematic overview of studies on phonagnosia and how they relate to current neurocognitive models of person recognition. It reviews studies that have characterized people who suffer from phonagnosia following brain damage (i.e. acquired phonagnosia) and also studies which have examined phonagnosia cases without apparent brain lesion (i.e. developmental phonagnosia). Based on the reviewed literature, the chapter emphasizes the need for a careful behavioural characterization of phonagnosia cases by taking into consideration the multistage nature of voice-identity processing and the resulting behavioural phonagnosia subtypes.

Author(s):  
Claudia Roswandowitz ◽  
Corrina Maguinness ◽  
Katharina von Kriegstein

The voice contains elementary social communication cues, conveying speech, as well as paralinguistic information pertaining to the emotional state and the identity of the speaker. In contrast to vocal-speech and vocal-emotion processing, voice-identity processing has been less explored. This seems surprising, given the day-to-day significance of person recognition by voice. A valuable approach to unravel how voice-identity processing is accomplished is to investigate people who have a selective deficit in recognising voices. Such a deficit has been termed phonagnosia. In the present chapter, we provide a systematic overview of studies on phonagnosia and how they relate to current neurocognitive models of person recognition. We review studies that have characterised people who suffer from phonagnosia following brain damage (i.e. acquired phonagnosia) and also studies, which have examined phonagnosia cases without apparent brain lesion (i.e. developmental phonagnosia). Based on the reviewed literature, we emphasise the need for a careful behavioural characterisation of phonagnosia cases by taking into consideration the multistage nature of voice-identity processing and the resulting behavioural phonagnosia subtypes.


Author(s):  
Claudia Roswandowitz ◽  
Corrina Maguinness ◽  
Katharina von Kriegstein

The voice contains elementary social communication cues, conveying speech, as well as paralinguistic information pertaining to the emotional state and the identity of the speaker. In contrast to vocal-speech and vocal-emotion processing, voice-identity processing has been less explored. This seems surprising, given the day-to-day significance of person recognition by voice. A valuable approach to unravel how voice-identity processing is accomplished is to investigate people who have a selective deficit in recognising voices. Such a deficit has been termed phonagnosia. In the present chapter, we provide a systematic overview of studies on phonagnosia and how they relate to current neurocognitive models of person recognition. We review studies that have characterised people who suffer from phonagnosia following brain damage (i.e. acquired phonagnosia) and also studies, which have examined phonagnosia cases without apparent brain lesion (i.e. developmental phonagnosia). Based on the reviewed literature, we emphasise the need for a careful behavioural characterisation of phonagnosia cases by taking into consideration the multistage nature of voice-identity processing and the resulting behavioural phonagnosia subtypes.


2014 ◽  
Vol 281 (1787) ◽  
pp. 20140480 ◽  
Author(s):  
Michelle J. Spierings ◽  
Carel ten Cate

Variation in pitch, amplitude and rhythm adds crucial paralinguistic information to human speech. Such prosodic cues can reveal information about the meaning or emphasis of a sentence or the emotional state of the speaker. To examine the hypothesis that sensitivity to prosodic cues is language independent and not human specific, we tested prosody perception in a controlled experiment with zebra finches. Using a go/no-go procedure, subjects were trained to discriminate between speech syllables arranged in XYXY patterns with prosodic stress on the first syllable and XXYY patterns with prosodic stress on the final syllable. To systematically determine the salience of the various prosodic cues (pitch, duration and amplitude) to the zebra finches, they were subjected to five tests with different combinations of these cues. The zebra finches generalized the prosodic pattern to sequences that consisted of new syllables and used prosodic features over structural ones to discriminate between stimuli. This strong sensitivity to the prosodic pattern was maintained when only a single prosodic cue was available. The change in pitch was treated as more salient than changes in the other prosodic features. These results show that zebra finches are sensitive to the same prosodic cues known to affect human speech perception.


2019 ◽  
Vol 23 (03) ◽  
pp. e331-e337 ◽  
Author(s):  
Alex Bruno Soares ◽  
Bruno Teixeira de Moares ◽  
Ana Nery Barbosa de Araújo ◽  
Noemi Grigoletto de Biase ◽  
Jonia Alves Lucena

Introduction Sulcus vocalis is defined as a longitudinal depression on the vocal cord, parallel to its free border. Its most marked characteristic is breathlessness, caused by incomplete glottal closure, in addition to roughness, due to the decrease in mucosal wave amplitude of the vocal cords. Vocal acoustic aspects, such as fundamental voice frequency, jitter, and shimmer, may also be altered in individuals with this type of laryngeal disorder. To assess the voice of individuals with sulcus vocalis, studies generally include a sample of subjects with vocal symptoms, excluding asymptomatic persons. To better characterize the vocal characteristics of individuals with sulcus vocalis, their asymptomatic counterparts must also be included. Objective Characterize the larynx and voice of asymptomatic adults with sulcus vocalis. Method A total of 26 adults, 13 with sulcus vocalis (experimental group) and 13 without (control group) were assessed. All the participants were submitted to suspension microlaryngoscopy, voice self-assessment, auditory perception and acoustic evaluation of the voice. Results Among the individuals with sulcus vocalis, 78% of the sulci were type I and 22% type II. Auditory perception assessment obtained statistically significant lower scores in individuals with sulcus vocalis compared with the control group, and a slight difference in the overall degree of hoarseness and roughness. No statistically significant intergroup diferences were found in self-reported voice or acoustic assessment. Conclusion Type I was the predominant sulcus vocalis observed in individuals without voice complaints, who may also exhibit slight changes in vocal quality and roughness.


2000 ◽  
Vol 11 (2) ◽  
pp. 106-111 ◽  
Author(s):  
Adam K. Anderson ◽  
Elizabeth A. Phelps

A growing body of evidence from humans and other animals suggests the amygdala may be a critical neural substrate for emotional processing. In particular, recent studies have shown that damage to the human amygdala impairs the normal appraisal of social signals of emotion, primarily those of fear. However, effective social communication depends on both the ability to receive (emotional appraisal) and the ability to send (emotional expression) signals of emotional state. Although the role of the amygdala in the appraisal of emotion is well established, its importance for the production of emotional expressions is unknown. We report a case study of a patient with bilateral amygdaloid damage who, despite a severe deficit in interpreting facial expressions of emotion including fear, exhibits an intact ability to express this and other basic emotions. This dissociation suggests that a single neural module does not support all aspects of the social communication of emotional state.


Author(s):  
Reina Remman ◽  
Nayla Matar ◽  
Michèle Puech

<p class="abstract"><strong>Background:</strong> Perceptive analysis of voice represents a basic and fundamental early step in the process of evaluating voice quality. Several factors seem to affect the results. Prominent among them is bilingualism, a common occurrence among Lebanese youths who frequently speak a second or third language in addition to their native tongue Arabic.</p><p class="abstract"><strong>Methods:</strong> This study aims to find pertinent information for the characterization of the severity of dysphonia depending on the language spoken by Lebanese bilingual subjects. The intent is to try to appreciate if voice seems more dysphonic in the Lebanese language compared to French and English. The sample comprises twenty-two Lebanese dysphonic women, aged between twenty and sixty years. They all read a text in Lebanese Arabic and another one in French or in English, depending on the languages that they use on a regular basis. Voice recordings are rated by four expert listeners. Two listening sessions are organized using the G, R and B criteria of Hirano’s GRBAS scale.  </p><p class="abstract"><strong>Results:</strong> Results show that the voice appears more dysphonic with a more pronounced roughness when reading in French for bilingual French/Arabic subjects than it is for English/Arabic persons reading in English. However, the patients speaking French and Arabic appear to be more dysphonic as a group compared to the patients speaking English and Arabic.</p><p style="margin: 0in 0in 0pt; text-align: justify;"><strong>Conclusions:</strong> It is important to enlarge the number of participants to get more accurate results. However, the suggested corpus in Lebanese Arabic seems to be adapted for the evaluation of voice quality.</p>


Author(s):  
Silke Paulmann ◽  
Sonja A. Kotz

Emotional communication is a key component of human social interactions. Listeners need to rapidly decode emotionally relevant signals and adapt their behaviour accordingly. This chapter summarizes recent findings on the time course underlying vocal emotion processing, with a particular focus on suprasegmental information as expressed by the voice and intonation in speech. Evidence from both behavioural investigations and electrophysiological (EEG) recordings confirms that vocal emotion processing includes early rapid—most likely involuntary—appraisal, as well as enhanced cognitive emotional meaning evaluation. Reviewed findings also suggest that influences such as task demands, individual differences, as well as social-psychological factors can alter the identified processing steps. In short, findings suggest that emotional vocal expression processing is a multi-layered process which follows a distinct time course.


Sign in / Sign up

Export Citation Format

Share Document