scholarly journals The role of vowel perceptual cues in compensatory responses to perturbations of speech auditory feedback

2013 ◽  
Vol 134 (2) ◽  
pp. 1314-1323 ◽  
Author(s):  
Kevin J. Reilly ◽  
Kathleen E. Dougherty
Keyword(s):  
Auditory Feedback ◽  
Perceptual Cues ◽  
Compensatory Responses

Top-Down Processing and Visual Reorientation Illusions in a Virtual Reality Environment

2004 ◽  
Vol 63 (3) ◽  
pp. 143-149 ◽  
Author(s):  
Fred W. Mast ◽  
Charles M. Oman
Keyword(s):  
Virtual Reality ◽  
Visual Processing ◽  
Line Length ◽  
Perceptual Cues ◽  
Virtual Reality Environment ◽  
Top Down ◽  
Test Conditions ◽  
The Subject ◽  
Processing Mechanisms

The role of top-down processing on the horizontal-vertical line length illusion was examined by means of an ambiguous room with dual visual verticals. In one of the test conditions, the subjects were cued to one of the two verticals and were instructed to cognitively reassign the apparent vertical to the cued orientation. When they have mentally adjusted their perception, two lines in a plus sign configuration appeared and the subjects had to evaluate which line was longer. The results showed that the line length appeared longer when it was aligned with the direction of the vertical currently perceived by the subject. This study provides a demonstration that top-down processing influences lower level visual processing mechanisms. In another test condition, the subjects had all perceptual cues available and the influence was even stronger.

scholarly journals Shared mechanisms of auditory and non-auditory vocal learning in the songbird brain

2021 ◽  
Author(s):  
James McGregor ◽  
Abigail Grassler ◽  
Paul I. Jaffe ◽  
Amanda Louise Jacob ◽  
Michael Brainard ◽  
...  
Keyword(s):  
Reinforcement Learning ◽  
Basal Ganglia ◽  
General Principle ◽  
Auditory Feedback ◽  
Sensory Feedback ◽  
Vocal Learning ◽  
Neural Systems ◽  
Auditory Information ◽  
Vocal Plasticity

Songbirds and humans share the ability to adaptively modify their vocalizations based on sensory feedback. Prior studies have focused primarily on the role that auditory feedback plays in shaping vocal output throughout life. In contrast, it is unclear whether and how non-auditory information drives vocal plasticity. Here, we first used a reinforcement learning paradigm to establish that non-auditory feedback can drive vocal learning in adult songbirds. We then assessed the role of a songbird basal ganglia-thalamocortical pathway critical to auditory vocal learning in this novel form of vocal plasticity. We found that both this circuit and its dopaminergic inputs are necessary for non-auditory vocal learning, demonstrating that this pathway is not specialized exclusively for auditory-driven vocal learning. The ability of this circuit to use both auditory and non-auditory information to guide vocal learning may reflect a general principle for the neural systems that support vocal plasticity across species.

Stutter and phenomena: The phenomenology and deconstruction of delayed auditory feedback

2020 ◽  
Vol 5 (2) ◽  
pp. 197-213
Author(s):  
Roshaya Rodness
Keyword(s):  
Auditory Feedback ◽  
The Self ◽  
Husserlian Phenomenology ◽  
Human Consciousness ◽  
Delayed Auditory Feedback ◽  
The Voice ◽  
Internal Division

Jacques Derrida’s early critique of Husserlian phenomenology discusses the production of the ‘phenomenological voice’ as the consummate model of human consciousness. Challenging Husserl’s conviction that consciousness is produced from the self-enclosed act of ‘hearing-oneself-speak’, Derrida points to vocality as the complex site of the self’s relationship to presence and exteriority. The internal division between hearing and speaking, he argues, introduces difference into the generation of conscious life. The use of delayed auditory feedback (DAF) as a prosthetic for stuttering provides an opportunity to engage Derrida’s insights on the connection between consciousness and voice with an ear to the speech of people who stutter. DAF, which may reduce or increase dysfluency depending on the speech of the user, introduces a series of delays, alterations and supplements to speech that underwrite the heterogeneous experience of conscious life. What can the philosophy of deconstruction add to conversations about the function of DAF, and what can theory about and experiences with DAF teach us about the self’s presence to itself and the role of alterity in shaping speech? What does stuttering teach us about the necessity of dysfluency for all speech? This article examines the relation between the voice and the phenomenological voice, and between stuttering and prosthetics. Concluding with an analysis of Richard Serra’s experimental recording, Boomerang (1974), it argues that voice is always already prostheticized with alterity, and that in hearing-oneself-speak we exist with voice in an expansive and unfinished conversation with our own mystery.

scholarly journals The Adjustment of Anterior Forebrain Pathway (AFP) to Birdsong Is Phased during Song Learning and Maintenance

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Jie Zang ◽  
Shenquan Liu
Keyword(s):  
Basal Ganglia ◽  
Auditory Feedback ◽  
Specific Effect ◽  
Song Learning ◽  
Exact Role ◽  
Anterior Forebrain Pathway ◽  
Anterior Forebrain ◽  
Song Production ◽  
Two Phases

Anterior forebrain pathway (AFP), a basal ganglia-dorsal forebrain circuit, significantly impacts birdsong, specifically in juvenile or deaf birds. Despite many physiological experiments supporting AFP’s role in song production, the mechanism underlying it remains poorly understood. Using a computational model of the anterior forebrain pathway and song premotor pathway, we examined the dynamic process and exact role of AFP during song learning and distorted auditory feedback (DAF). Our simulation suggests that AFP can adjust the premotor pathway structure and syllables based on its delayed input to the robust nucleus of the archistriatum (RA). It is also indicated that the adjustment to the synaptic conductance in the song premotor pathway has two phases: normal phases where the adjustment decreases with an increasing number of trials and abnormal phases where the adjustment remains stable or even increases. These two phases alternate and impel a specific effect on birdsong based on AFP’s specific structures, which may be associated with auditory feedback. Furthermore, our model captured some characteristics shown in birdsong experiments, such as similarities in pitch, intensity, and duration to real birds and the highly abnormal features of syllables during DAF.

Cognitive penetration: Would we know it if we saw it?

1999 ◽  
Vol 22 (3) ◽  
pp. 390-391
Author(s):  
Gillian Rhodes ◽  
Michael L. Kalish
Keyword(s):  
Signal Detection ◽  
Neural Activity ◽  
Context Effects ◽  
Cognitive Penetration ◽  
Computational Power ◽  
Early Vision ◽  
Perceptual Cues ◽  
Perceptual Attention

How can the impenetrability hypothesis be empirically tested? We comment on the role of signal detection measures, suggesting that context effects on discriminations for which post-perceptual cues are irrelevant, or on neural activity associated with early vision, would challenge impenetrability. We also note the great computational power of the proposed pre-perceptual attention processes and consider the implications for testability of the theory.

Visuele Terugkoppeling Van Engelse Intonatie;

1981 ◽  
Vol 9 ◽  
pp. 112-118
Author(s):  
Kees de Bot
Keyword(s):  
Second Language ◽  
Visual Feedback ◽  
Auditory Feedback ◽  
Future Research ◽  
Learning Behaviour ◽  
Feedback Mode ◽  
Practice Time

A description is given of an experiment in which we tried to show that visual feedback is more effective in intonation learning than auditory feedback. The factors in the experiment were feedback mode and practice time. The results showed a significant effect of visual feedback over auditory feedback, whereas amount of practice time doesn't seem to be a major factor. An analysis of learning behaviour of the subjects in the experiment revealed that feedback mode influences learning behaviour: subjects with visual feedback tend to practise more intensively than subjects with auditory feedback. Future research will concentrate on various factors related to intonation learning and the effectiveness of visual feedback, such as the role of age, mothertongue and degree of fluency in the second language.

Sign in / Sign up

Export Citation Format

Share Document