Article
Computer Science, Artificial Intelligence
Laurent Bonnasse-Gahot, Jean-Pierre Nadal
Summary: This study explores categorical effects in artificial neural networks by combining theoretical analysis and numerical simulations. It demonstrates that category learning automatically induces categorical perception and that deeper layers in the network exhibit stronger categorical effects. Additionally, the study proposes a coherent view on the efficacy of dropout regularization techniques, emphasizing the differential impact of noise on neural representation depending on category structure.
NEURAL COMPUTATION
(2022)
Review
Neurosciences
David Kemmerer
Summary: Observing an agent perform an action can trigger a motor simulation in the Mirror Neuron System of the observer, which is modulated by various factors. This paper aims to provide a comprehensive survey of 22 distinct factors influencing the MNS during action observation, and to consider the implications of these factors on four theoretical models of the MNS. The assessments suggest that existing models are supported by some findings but challenged by others, highlighting the need for a more comprehensive model to account for all identified modulatory factors.
PROGRESS IN NEUROBIOLOGY
(2021)
Article
Audiology & Speech-Language Pathology
Pamela Fuhrmeister, Emily B. Myers
Summary: The study found that brain structure is related to individual performance in categorical speech perception, where increased surface area in the right middle frontal gyrus is associated with more categorical perception, and more gyrification in bilateral transverse temporal gyri is related to less consistent responses on the task.
BRAIN AND LANGUAGE
(2021)
Article
Behavioral Sciences
Anja Staiger, Matthias L. Schroeter, Wolfram Ziegler, Theresa Schoelderle, Sarah Anderl-Straub, Adrian Danek, Thomas Duning, Klaus Fassbender, Klaus Fliessbach, Holger Jahn, Elisabeth Kasper, Johannes Kornhuber, Bernhard Landwehrmeyer, Martin Lauer, Jolina Lombardi, Albert Ludolph, Felix Mueller-Sarnowski, Maryna Polyakova, Catharina Prix, Johannes Prudlo, Frank Regenbrecht, Carola Rossmeier, Anja Schneider, Jens Wiltfang, Markus Otto, Janine Diehl-Schmid
Summary: The study revealed varying prevalence of MSDs among different types of PPA patients, with the highest proportion observed in nfvPPA patients. It also confirmed the presence of MSDs in svPPA and lvPPA patients.
Article
Audiology & Speech-Language Pathology
Marie K. Meyer, Benjamin Munson
Summary: The study found that clinical experience influences how speech-language pathologists evaluate the accuracy of children's speech production. Experienced professionals are more likely to use endpoint values on rating scales for evaluation, while inexperienced individuals and non-professionals tend to use intermediate ratings. This finding has significant implications for the field of children's speech assessment.
INTERNATIONAL JOURNAL OF LANGUAGE & COMMUNICATION DISORDERS
(2021)
Article
Neurosciences
Alexander M. Dreyer, Leo Michalke, Anat Perry, Edward F. Chang, Jack J. Lin, Robert T. Knight, Jochem W. Rieger
Summary: Broadly congruent and strictly congruent mirror neurons have been observed in primate studies, with the former responding to any grasp movement and the latter responding only to specific grasp movements. This study focused on classifying grasp types in humans using electrocorticography data, and found successful classification during movement observation and execution but not during movement retention. The results provide evidence for grasp-congruent activity in the human mirror neuron system, potentially originating from strictly congruent mirror neurons.
Article
Audiology & Speech-Language Pathology
Liziane Bouvier, Laura Monetta, Robert Laforce, Paolo Vitali, Christian Bocti, Vincent Martel-Sauvageau
Summary: Progressive apraxia of speech (PAOS) is a neurodegenerative syndrome characterized by progressive and initially isolated or dominant apraxia of speech (primary progressive apraxia of speech [PPAOS] and dominant progressive apraxia of speech [DAOS], respectively). This study provides an in-depth analysis of motor speech characteristics of PAOS in Quebec French speakers and adds further evidence for the differentiation of PPAOS and DAOS. Combining simple perceptual and acoustic analyses represent a promising approach to distinguish the two variants and identify treatment targets.
INTERNATIONAL JOURNAL OF LANGUAGE & COMMUNICATION DISORDERS
(2021)
Article
Biology
Christina Lubinus, Anne Keitel, Jonas Obleser, David Poeppel, Johanna M. Rimmele
Summary: When speech is too fast, the tracking of the acoustic signal deteriorates, leading to suboptimal speech segmentation and decoding. This study investigates the role of individual differences in auditory-motor coupling strength in shaping these temporal constraints. Higher auditory-motor synchronization and speech motor production rates predict better speech comprehension, especially for individuals with higher working memory capacity and linguistic predictability. These findings suggest that both the motor system and auditory-motor synchronization have a modulatory role in speech comprehension.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Psychology, Mathematical
Kate Slade, Alanna Beat, Jennifer Taylor, Christopher J. Plack, Helen E. Nuttall
Summary: It is unclear whether older adults recruit speech motor resources during speech perception, similar to younger normally hearing listeners. This study investigated the effect of suppressing speech motor resources on speech perception in older adults compared to younger adults. The results suggest that speech motor resources are less available to support speech perception in older adults, providing important insights for auditory-motor integration in aging.
PSYCHONOMIC BULLETIN & REVIEW
(2023)
Review
Behavioral Sciences
Josselin Baumard, Didier Le Gall
Summary: The diagnosis of limb apraxia is challenging due to the diverse definitions and assessment methods. It is suggested to focus on symptoms and propose two complementary definition criteria. Limb apraxia can be categorized into symptomatic and idiopathic types, with limb-kinetic apraxia fulfilling exclusion, specificity, and consistency criteria.
Review
Behavioral Sciences
Giacomo Rizzolatti, Maddalena Fabbri-Destro, Arturo Nuara, Roberto Gatti, Pietro Avanzini
Summary: This article summarizes the potential applications of action observation treatment in rehabilitation, fall prevention, injury prevention, and improving motor control precision. By connecting various points and discussing the impact of AOT on neurophysiological mechanisms, it explores the potential for enhancing individuals' quality of life across the lifespan.
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
(2021)
Article
Neurosciences
Jacqueline McKechnie, Mostafa Shahin, Beena Ahmed, Patricia McCabe, Joanne Arciuli, Kirrie J. Ballard
Summary: This study evaluated the accuracy of a custom-built deep neural network (DNN)-based classification tool and found differences in lexical stress accuracy between children with CAS and TD. Prior knowledge did not confer a clear advantage in accuracy, and further improvement is needed for WS words in apraxic speech.
Article
Clinical Neurology
Helena Hybbinette, Ellika Schalling, Jeanette Plantin, Catharina Nygren-Deboussard, Marika Schutz, Per Ostberg, Pavel G. Lindberg
Summary: This study found that AOS and aphasia are common in left hemisphere stroke patients with hand motor impairment, and recovery shows similar trends across speech-language and motor domains, supporting the shared recovery hypothesis. Initial aphasia score was the strongest predictor of AOS recovery, while lesion volume did not correlate with recovery.
FRONTIERS IN NEUROLOGY
(2021)
Article
Audiology & Speech-Language Pathology
Anita van der Merwe
Summary: A new version of the FLF, the FL (four-level) model, has been proposed to differentiate between speech motor planning, programming, and execution levels or phases of processing. The model integrates concepts from computational modeling and proposes distinct control architectures for both planning and programming levels. It identifies the loci and nature of disruption in the motor planning phase, which could explain the pathophysiology and core features of AOS.
Article
Acoustics
Bob McMurray
Summary: Categorical perception (CP) in speech perception has been a significant finding in cognitive science, but recent research challenges its strongest forms and questions the evidence supporting it. The current understanding suggests that auditory input encoding is more continuous than categorical, contrary to the traditional CP framework.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2022)
Article
Psychology
Laurel H. Carney, Joyce M. McDonough
ATTENTION PERCEPTION & PSYCHOPHYSICS
(2019)
Article
Clinical Neurology
Alena Stasenko, Diane M. Jacobs, David P. Salmon, Tamar H. Gollan
JOURNAL OF THE INTERNATIONAL NEUROPSYCHOLOGICAL SOCIETY
(2019)
Article
Behavioral Sciences
Denis S. Smirnov, Alena Stasenko, David P. Salmon, Douglas Galasko, James B. Brewer, Tamar H. Gollan
Article
Psychology, Clinical
Tamar H. Gollan, Chuchu Li, Alena Stasenko, David P. Salmon
Article
Audiology & Speech-Language Pathology
Alena Stasenko, Chelsea Hays, Christina E. Wierenga, Tamar H. Gollan
BRAIN AND LANGUAGE
(2020)
Article
Gerontology
Alena Stasenko, Daniel Kleinman, Tamar H. Gollan
Summary: Young bilinguals show greater reversed language dominance effects when switching languages compared to older bilinguals, who exhibit nonsignificant language dominance effects. The dominance reversal in younger bilinguals transfers to, and is even larger in, the second set of pictures, suggesting that repetition may partially offset inhibitory effects.
PSYCHOLOGY AND AGING
(2021)
Article
Clinical Neurology
Alena Stasenko, Erik Kaestner, Anny Reyes, Sanam J. Lalani, Brianna Paul, Manu Hegde, Jonathan L. Helm, Sharona Ben-Haim, Carrie R. McDonald
Summary: This study highlights that preoperative asymmetry of deep and superficial white matter structures within the temporal lobe can predict postoperative memory decline in patients with temporal lobe epilepsy. Furthermore, asymmetry of the superficial white matter is shown to be the strongest predictor in predicting and classifying memory outcomes.
Article
Neuroimaging
Erik Kaestner, Alena Stasenko, Sharona Ben-Haim, Jerry Shih, Brianna M. Paul, Carrie R. McDonald
Summary: The integrity of the white matter network connecting the basal-temporal cortex plays a crucial role in both pre-surgical naming ability and post-surgical naming outcomes in temporal lobe epilepsy patients. Specifically, higher pre-surgical FA in certain white matter regions is associated with better visual and auditory naming scores, while the reserve capacity of the contralateral fusiform SWM may mitigate visual naming decline post-surgically.
NEUROIMAGE-CLINICAL
(2022)
Article
Clinical Neurology
Alena Stasenko, Adam Schadler, Erik Kaestner, Anny Reyes, Mirella Diaz-Santos, Monika Polczynska, Carrie R. McDonald
Summary: Individuals with left temporal lobe epilepsy have a higher rate of atypical language lateralization compared to healthy controls. Bilinguals have a less left-lateralized pattern of language representation. The combined influence of bilingual experience and side of seizure focus may promote re-organization of language networks, leading to increased right hemisphere involvement in language processing.
Review
Clinical Neurology
Alena Stasenko, Christine Lin, Leonardo Bonilha, Boris C. Bernhardt, Carrie R. McDonald
Summary: This review article focuses on the relationship between epilepsy and white matter (WM) networks, as well as the association of WM alterations with cognitive and psychiatric comorbidities, drug resistance, and surgical outcomes. Research findings suggest that disrupted WM connections play a significant role in predicting outcomes following epilepsy surgery. The authors call for further research using advanced analytic techniques and exploring the impact of neuromodulation and other treatments on WM networks.
Article
Psychology, Clinical
Tamar H. Gollan, Alena Stasenko, Chuchu Li, Denis S. Smirnov, Douglas Galasko, David P. Salmon
Summary: The present study found that difficulty stopping autocorrect errors is associated with predicting Alzheimer's disease biomarkers, and individuals with AD-like biomarkers are more vulnerable to autocorrect function words than content words, indicating the earliest cognitive changes associated with AD risk involving monitoring and attention.
Article
Clinical Neurology
Alena Stasenko, Erik Kaestner, Donatello Arienzo, Adam Schadler, Anny Reyes, Jerry J. J. Shih, Jonathan L. L. Helm, Monika Polczynska, Carrie R. R. McDonald
Summary: This study aims to investigate whether bilingualism benefits the brain structural white matter network organization in individuals with temporal lobe epilepsy (TLE). The results suggest that bilingual individuals with left TLE have higher whole-brain network organization compared to monolinguals. Additionally, bilinguals with left TLE show higher efficiency in frontal-executive and language networks. These findings indicate that bilingualism has a modulatory effect on brain connectivity in epilepsy and may serve as a protective factor.
Article
Psychology, Clinical
Tamar H. Gollan, Alena Stasenko, David P. Salmon
Summary: This study examined the joint consequences of bilingualism and Alzheimer's disease (AD) for picture naming ability and found that both languages are affected by AD, but the effect may vary with item difficulty. Testing primarily or exclusively in the dominant language is best for detecting AD naming impairments in bilinguals. An either-language scoring procedure can increase naming scores in both patients and controls.
Article
Psychology, Experimental
Alena Stasenko, Tamar H. Gollan
Article
Psychology, Experimental
Dorit Segal, Alena Stasenko, Tamar H. Gollan
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-GENERAL
(2019)