Purpose: The purpose of this study was to examine a potential increased cognitive processing bottleneck within Parkinson disease (PD) by extending a previous overlapping task methodology. Additionally, this study extends previous overlapping task methodology in PD to examine the influence of modality (vocal vs. manual) on response delays in…

Purpose: Increasingly, mechanisms of learning are being considered during aphasia rehabilitation. Well-characterized learning mechanisms can inform "how" interventions should be administered to maximize the acquisition and retention of treatment gains. This systematic scoping review mapped hypothesized mechanisms of action (MoAs) and…

Background: People with post-stroke aphasia tend to have smaller social networks, a higher risk of depression and poorer health-related quality of life than those who do not have aphasia after stroke. Stroke-specific or general rehabilitation programmes offered by community-based organizations are commonly group-based and involve discussions among…

Autism traits are common exclusionary criteria in developmental prosopagnosia (DP) studies. We investigated whether autism traits produce qualitatively different face processing in 43 DPs with high vs. low autism quotient (AQ) scores. Compared to controls (n = 27), face memory and perception were similarly deficient in the high- and low-AQ DPs,…

Background: Individuals with affective-prosodic deficits have difficulty understanding or expressing emotions and attitudes through prosody. Affective prosody disorders can occur in multiple neurological conditions, but the limited knowledge about the clinical groups prone to deficits complicates their identification in clinical settings.…

Background: Cognitive-communication disorders (CCDs) are common in the traumatic brain injury (TBI) population. Despite this, there has been limited research that explores the long-term impacts of reduced cognitive-communication functioning on daily life for this population. Aims: To identify the long-term impacts of cognitive-communication…

Objective: Attention-deficit/hyperactivity disorder (ADHD) diagnosis in college students has been associated with poor academic outcomes and greater neuropsychological and emotional difficulties. The present study sought to determine whether college students who believe they have ADHD report more neuropsychological deficits than non-ADHD peers.…

Differences in the learning associated transcriptional profiles between mouse strains with distinct learning abilities could provide insight into the molecular basis of learning and memory. The inbred mouse strain DBA/2 shows deficits in hippocampus-dependent memory, yet the transcriptional responses to learning and the underlying mechanisms of…

Purpose: The aim of this study was to use acoustic and kinematic speech measures to characterize type of motor speech impairment--apraxia of speech (AOS) versus dysarthria--in individuals with four-repeat tauopathy (4RT)-associated syndromes, including nonfluent variant primary progressive aphasia (nfvPPA), primary progressive AOS (PPAOS),…

Primitive reflexes are a critical part of early development but eventually integrate to give rise to volitional and cortically directed movements and higher-level cognitive skills. Failure to integrate these reflexes in a developmentally appropriate stage has shown correlation with developmental delays which affect occupational participation.…

Purpose: The human voice changes with the progression of neurological disease and the onset of diseases that affect articulators, often decreasing the effectiveness of communication. These changes can be objectively measured using signal processing techniques that extract acoustic features. When measuring acoustic features, there are often several…

Purpose: If language production is impaired, will gestures compensate? Evidence in favor of this prediction has often been argued to come from aphasia, but it remains contested. Here, we tested whether thought content not present in speech due to language impairment is manifested in gestures, in 20 people with dysfluent (Broca's) aphasia, 20…

Purpose: Facial movement analysis during facial gestures and speech provides clinically useful information for assessing bulbar amyotrophic lateral sclerosis (ALS). However, current kinematic methods have limited clinical application due to the equipment costs. Recent advancements in consumer-grade hardware and machine/deep learning made it…

Language processing is an extremely important, uniquely human cognitive ability. For well over a century, researchers have sought to understand how the human brain implements a system for instantaneously recognizing and generating complex linguistic patterns. Left perisylvian regions are considered to have certain computational abilities that are…

Tourette's syndrome (TS) is a condition that has been stigmatised and mocked in contemporary society, yet little is known about the subjective experience of those directly affected by it. Guided by Public and Patient Involvement (PPI) a mixed method design was used for this study to explore the experience of stigma in adults living with TS in the…