Jeffery A Jones

Jeffery A Jones
Wilfrid Laurier University | WLU · Department of Psychology

PhD

About

90
Publications
11,474
Reads
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2,857
Citations
Additional affiliations
September 2009 - December 2014
Wilfrid Laurier University
Position
  • Member
July 2008 - present
Wilfrid Laurier University
Position
  • Member
July 2007 - present
Wilfrid Laurier University
Position
  • Managing Director

Publications

Publications (90)
Article
The supramarginal gyrus (SMG) has been implicated in auditory-motor integration for vocal production. However, whether the SMG is bilaterally or unilaterally involved in auditory feedback control of vocal production in a causal manner remains unclear. The present event-related potential (ERP) study investigated the causal roles of the left and righ...
Article
Full-text available
Accumulating evidence demonstrates that the cerebellum is involved in a variety of cognitive functions. Recently, impaired auditory-motor integration for vocal control has been identified in patients with cerebellar degeneration, characterized by abnormally enhanced vocal compensations for pitch perturbations. However, the causal relationship betwe...
Article
Clinical studies have shown the efficacy of transcranial magnetic stimulation in treating movement disorders in patients with spinocerebellar ataxia (SCA). However, whether similar effects occur for their speech motor disorders remains largely unknown. The present event-related potential study investigated whether and how abnormalities in auditory-...
Article
Speakers regulate vocal motor behaviors in a compensatory manner when perceiving errors in auditory feedback. Little is known, however, about the source of interindividual variability that exists in the degree to which speakers compensate for perceived errors. The present study included 40 young adults to investigate whether individual differences...
Article
Autism spectrum disorder (ASD) is a developmental disorder characterized by persistent deficits in social communication and interaction. Speech is an important form of social communication. Prosody (e.g. vocal pitch, rhythm, etc.), one aspect of the speech signal, is crucial for ensuring information about the emotionality, excitability, and intent...
Article
The dorsolateral prefrontal cortex (DLPFC) has been implicated in auditory-motor integration for accurate control of vocal production, but its precise role in this feedback-based process remains largely unknown. To this end, the present event-related potential study applied a transcranial magnetic stimulation (TMS) protocol, continuous theta-burst...
Article
Children maintain fluent speech despite dramatic changes to their articulators during development. Auditory feedback aids in the acquisition and maintenance of the sensorimotor mechanisms that underlie vocal motor control. MacDonald, Johnson, Forsythe, Plante, and Munhall (2012) reported that toddlers' speech motor control systems may "suppress" th...
Article
Full-text available
Decay and interference are two leading proposals for the cause of forgetting from working and/or short-term memory, and mathematical models of both processes exist. In the present study, we apply a computational model to data from a simple short-term memory task and demonstrate that decay and interference can co-occur in the same experimental parad...
Article
Full-text available
Accumulating evidence has shown enhanced sensorimotor control of vocal production as a consequence of extensive singing experience. The neural basis of this ability, however, is poorly understood. Given that the insula mediates motor aspects of vocal production, the present study investigated structural plasticity in insula induced by singing exper...
Article
Full-text available
The cerebellum has been implicated in the feedforward control of speech production. However, the role of the cerebellum in the feedback control of speech production remains unclear. To address this question, the present event‐related potential study examined the behavioral and neural correlates of auditory feedback control of vocal production in pa...
Article
Instructing individuals with Parkinson’s disease (PD) to speak loudly and clearly with external cues leads to improvements of their speech in loudness, pitch, and articulatory movement, but the underlying neural mechanisms are largely unknown. The present event-related potential study investigated whether and how external cueing can facilitate audi...
Chapter
Early literacy skills have been the focus of considerable research for the past two decades. Many instructional interventions have been developed to help improve children's acquisition of key skills – among the most recent is an array of software programs. In this chapter we review the foundations for software design, instructional theories related...
Article
Full-text available
It is well known that acoustic change in speech production is subject to age-related declines. How aging alters cortical sensorimotor integration in speech control, however, remains poorly understood. The present event-related potential study examined the behavioral and neural effects of aging and sex on the auditory-motor processing of voice pitch...
Article
Full-text available
Auditory feedback plays an important role in monitoring and correcting for errors during speech production. Previous research suggests that at vocalization onset, auditory feedback is compared to a sensory prediction generated by the motor system to ensure the desired fundamental frequency (F0) is produced. After vocalization onset, auditory feedba...
Article
Full-text available
Significant advances have been made in understanding the role of auditory feedback in sensorimotor integration for speech production. The neurogenetic basis of this feedback-based control process, however, remains largely unknown. Mutations of FOXP2 gene in humans are associated with severe deficits in speech motor behavior. The present study exami...
Article
Full-text available
When people hear unexpected perturbations in auditory feedback, they produce rapid compensatory adjustments of their vocal behavior. Recent evidence has shown enhanced vocal compensations and cortical event-related potentials (ERPs) in response to attended pitch feedback perturbations, suggesting that this reflex-like behavior is influenced by sele...
Article
Previous studies suggest that a perception-action dissociation exists for the cortical processing of vocal pitch, because speakers compensate for small vocal errors without awareness. In this event-related potential (ERP) study, participants vocalized while hearing their productions either altered or unaltered in pitch, and reported whether their a...
Article
Full-text available
Although a growing body of research has focused on the cortical sensorimotor mechanisms that support auditory feedback control of speech production, much less is known about the subcortical contributions to this control process. The present study examined whether subregional anatomy of subcortical structures assessed by statistical shape analysis i...
Article
Full-text available
Although working memory (WM) is considered as an emergent property of the speech perception and production systems, the role of WM in sensorimotor integration during speech processing is largely unknown. We conducted two event-related potential experiments with female and male young adults to investigate the contribution of WM to the neurobehaviour...
Chapter
Early literacy skills have been the focus of considerable research for the past two decades. Many instructional interventions have been developed to help improve children's acquisition of key skills - among the most recent is an array of software programs. In this chapter we review the foundations for software design, instructional theories related...
Article
Full-text available
This case study examined the translation performance of four professional translators with the aim of exploring the cognitive effort involved in direct and inverse translation. Four professional translators translated two comparable texts from English into Spanish and from Spanish into English. Eye-tracking technology was used to analyze the total...
Article
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Several studies have shown sensorimotor deficits in speech processing in individuals with idiopathic Parkinson's disease (PD). The underlying neural mechanisms, however, remain poorly understood. In the present event-related potential (ERP) study, 18 individuals with PD and 18 healthy controls were exposed to frequency-altered feedback (FAF) while...
Article
Full-text available
Temporal lobe epilepsy (TLE) is the most common drug-refractory focal epilepsy in adults. Previous research has shown that patients with TLE exhibit decreased performance in listening to speech sounds and deficits in the cortical processing of auditory information. Whether TLE compromises auditory-motor integration for voice control, however, remai...
Article
Both cognitive and sensorimotor processes are needed for successful planning of footsteps during complex gait situations, but the interaction between these factors during motor planning, as well as their response to dopaminergic treatment is poorly understood in Parkinson’s disease. In the current study, we evaluated walking and gaze behaviours of...
Article
Hearing one's own voice is important for regulating ongoing speech, and for mapping speech sounds onto articulator movements. However, it is currently unknown whether attention mediates changes in the relationship between motor commands and their acoustic output, which are necessary as growth and aging inevitably cause changes to the vocal tract. I...
Article
Studies of interference in working and short-term memory suggest that irrelevant information may overwrite the contents of memory or intrude into memory. While some previous studies have reported greater interference when irrelevant information is similar to the contents of memory than when it is dissimilar, other studies have reported greater inte...
Article
Full-text available
Working memory training can improve the performance of tasks that were not trained. Whether auditory-motor integration for voice control can benefit from working memory training, however, remains unclear. The present event-related potential (ERP) study examined the impact of working memory training on the auditory-motor processing of vocal pitch. T...
Article
Auditory feedback plays an important role in the acquisition of fluent speech; however, this role may change once speech is acquired and individuals no longer experience persistent developmental changes to the brain and vocal tract. For this reason, we investigated whether the role of auditory feedback in sensorimotor learning differs across childr...
Article
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Speech perception and production are intimately linked. There is evidence that speech motor learning results in changes to auditory processing of speech. Whether speech motor control benefits from perceptual learning in speech, however, remains unclear. This event-related potential study investigated whether speech-sound learning can modulate the p...
Article
Full-text available
Speakers rapidly adjust their ongoing vocal productions to compensate for errors they hear in their auditory feedback. It is currently unclear what role attention plays in these vocal compensations. This event-related potential (ERP) study examined the influence of selective and divided attention on the vocal and cortical responses to pitch errors...
Article
Full-text available
Although the role of hemispheric laterality in freezing of gait (FOG) remains a topic of debate, important new evidence has suggested that individuals with Parkinson's disease (PD) who experience freezing of gait (PD-FOG) may have decreased activity in the circuitry of the right fronto-parietal cortices, irrespective of the side of basal ganglia (B...
Article
Recent research has argued that removal of relevant sensory information during the planning and control of simple, self-paced walking can result in increased demand on central processing resources in Parkinson’s disease (PD). However, little is known about more complex gait tasks that require planning of gait adaptations to cross over an obstacle i...
Article
Full-text available
Auditory feedback is required to maintain fluent speech. At present, it is unclear how attention modulates auditory feedback processing during ongoing speech. In this event-related potential (ERP) study, participants vocalized/a/, while they heard their vocal pitch suddenly shifted downward a ½ semitone in both single and dual-task conditions. Duri...
Article
Speech production requires the combined effort of a feedback control system driven by sensory feedback, and a feedforward control system driven by internal models. However, the factors dictating the relative weighting of these feedback and feedforward control systems are unclear. In this event-related potential (ERP) study, participants produced vo...
Article
Full-text available
Brain imaging studies indicate that speech motor areas are recruited for auditory speech perception, especially when intelligibility is low due to environmental noise or when speech is accented. The purpose of the present study was to determine the relative contribution of brain regions to the processing of speech containing phonetic categories fro...
Article
Full-text available
Behavioral and neuroimaging studies have demonstrated that brain regions involved with speech production also support speech perception, especially under degraded conditions. The premotor cortex has been shown to be active during both observation and execution of action (‘Mirror System’ properties), and may facilitate speech perception by mapping u...
Article
Full-text available
Speech motor control develops gradually as the acoustics of speech are mapped onto the positions and movements of the articulators. In this event-related potential (ERP) study, children and adults aged 4-30 years produced vocalizations while exposed to frequency-altered feedback. Vocal pitch variability and the latency of vocal responses were found...
Conference Paper
Full-text available
Understanding the neural processing of auditory feedback during speech is essential to the development of a comprehensive model of speech motor control. Currently, the relationship between the magnitude of errors detected in feedback and the evoked neural responses is unclear. We exposed speakers to sudden changes in vocal pitch that ranged from 0...
Article
Full-text available
Background Recent research has addressed the suppression of cortical sensory responses to altered auditory feedback that occurs at utterance onset regarding speech. However, there is reason to assume that the mechanisms underlying sensorimotor processing at mid-utterance are different than those involved in sensorimotor control at utterance onset....
Article
Full-text available
Background Auditory feedback is important for accurate control of voice fundamental frequency (F0). The purpose of this study was to address whether task instructions could influence the compensatory responding and sensorimotor adaptation that has been previously found when participants are presented with a series of frequency-altered feedback (FAF...
Article
Full-text available
Auditory event-related potentials (ERP)s of the P1-N1-P2 complex are modulated when participants hear frequency-altered feedback (FAF) regarding their ongoing vocal productions. However, the relationship between the feedback perturbation magnitudes and the resultant neural responses is at present unclear. In the present study, we exposed speakers t...
Article
Full-text available
Objective: The present event-related potential (ERP) study examined the developmental mechanisms of auditory-vocal integration in normally developing children. Neurophysiological responses to altered auditory feedback were recorded to determine whether they are affected by age and sex. Method: Forty-two children were pairwise matched for sex and...
Article
Auditory feedback plays an important role in monitoring vocal output and determining when adjustments are necessary. In this study a group of untrained singers participated in a frequency altered feedback experiment to examine if accuracy at matching a note could predict the degree of compensation to auditory feedback that was shifted in frequency....
Conference Paper
Full-text available
Speech motor control develops gradually as the acoustics of speech are mapped onto the positions and movements of the articulators. In this study children and adults between 4-30 years of age produced vocalizations while exposed to frequency altered feedback (FAF). The amplitude and latency of the vocal responses were found to differ as a function...
Article
Full-text available
Auditory feedback has been demonstrated to play an important role in the control of voice fundamental frequency (F(0)), but the mechanisms underlying the processing of auditory feedback remain poorly understood. It has been well documented that young adults can use auditory feedback to stabilize their voice F(0) by making compensatory responses to...
Article
Full-text available
Research on the control of visually guided limb movements indicates that the brain learns and continuously updates an internal model that maps the relationship between motor commands and sensory feedback. A growing body of work suggests that an internal model that relates motor commands to sensory feedback also supports vocal control. There is evid...
Article
Speaking and singing require accurate control of the fundamental frequency (F0) of the voice. Recent research indicates that F0 control involves an interplay between closed and open loop control. We used a frequency-altered auditory feedback paradigm in two experiments to investigate the impact vocal training has on the plasticity of the acoustic-m...
Article
Full-text available
The present study assessed the effect of sex on voice fundamental frequency (F(0)) responses to pitch feedback perturbations during sustained vocalization. Sixty-four native-Mandarin speakers heard their voice pitch feedback shifted at ± 50, ± 100, or ± 200 cents for 200 ms, five times during each vocalization. The results showed that, as compared...
Article
Full-text available
Vocal sensory-motor adaptation is typically studied by introducing a prolonged change in auditory feedback. While it may be preferable to perform multiple blocks of adaptation within a single experiment, it is possible that a carry-over effect from previous blocks of adaptation may affect the results of subsequent blocks. Speakers were asked to voc...
Article
Full-text available
Singing requires accurate control of the fundamental frequency (F0) of the voice. This study examined trained singers' and untrained singers' (nonsingers') sensitivity to subtle manipulations in auditory feedback and the subsequent effect on the mapping between F0 feedback and vocal control. Participants produced the consonant-vowel /ta/ while rece...
Article
When speakers hear the fundamental frequency (F0) of their voice altered, they shift their F0 in the direction opposite the perturbation. The current study used ERPs to examine sensory processing of short feedback perturbations during an ongoing utterance. In one session, participants produced a vowel at an F0 of their own choosing. In another sess...
Article
When a colour/orientation conjunction search display is immediately preceded by a display that shows either the colour or the orientation of each upcoming search item, search is faster after colour-preview than after orientation-preview. One explanation for this feature asymmetry is that colour has priority access to attentional selection relative...
Article
Full-text available
During vocalization, auditory feedback is used to attain and maintain a desired fundamental frequency (F0). The use of auditory feedback to control vocalization has been studied using adaptation studies, in which an F0 feedback alteration is maintained across many trials, and using midutterance perturbations, where a brief F0 change is introduced d...
Article
When speakers hear the fundamental frequency (F0) of their voice altered, they shift their F0 in the direction opposite to the perturbation. The neural mechanisms underlying this response are poorly understood. In the present study, event-related potentials (ERPs) were used to examine the neural mechanisms used to detect alterations in auditory fee...
Article
A large body of evidence suggests that the motor system maintains a forward model that predicts the sensory outcome of movements. When sensory feedback does not match the predicted consequences, a compensatory response corrects for the motor error and the forward model is updated to prevent future errors. Like other motor behaviours, vocalization r...
Article
Full-text available
Research demonstrates that listening to and viewing speech excites tongue and lip motor areas involved in speech production. This perceptual-motor relationship was investigated behaviourally by presenting video clips of a speaker producing vowel-consonant-vowel syllables in three conditions: visual-only, audio-only, and audiovisual. Participants id...
Article
Full-text available
Little is known about the basic processes underlying the behavior of singing. This experiment was designed to examine differences in the representation of the mapping between fundamental frequency (F0) feedback and the vocal production system in singers and nonsingers. Auditory feedback regarding F0 was shifted down in frequency while participants...
Article
Speakers exposed to delayed auditory feedback (DAF) are often dysfluent. We investigated the possibility that providing visual feedback in addition to DAF would reduce speech disruption. Participants repeated sentences while they heard their auditory feedback delayed with and without simultaneous visual feedback. Replicating previous work, DAF led...
Article
Full-text available
Research investigating 'mirror neurons' has demonstrated the presence of an observation-execution matching system in humans. One hypothesized role for this system might be to aid in action understanding by encoding the underlying intentions of the actor. To investigate this hypothesis, we asked participants to observe photographs of an actor making...
Article
Full-text available
Magnitude estimation was used to assess the experience of urgency in pulse-train stimuli (pulsed white noise) ranging from 3.13 to 200 Hz. At low pulse rates, pulses were easily resolved. At high pulse rates, pulses fused together leading to a tonal sensation with a clear pitch level. Urgency ratings followed a nonmonotonic (polynomial) function wi...
Article
Singing requires accurate control of the fundamental frequency (F0) of the voice. Previous work has demonstrated that F0 control involves an interplay between closed? and open?loop control. A frequency?altered auditory feedback (FAF) paradigm was used to examine the acoustic?motor representation of the mapping between F0 feedback and the vocal prod...