Purpose: Intrinsic and extrinsic tongue muscles in healthy and diseased populations vary both in their intra- and intersubject behaviors during speech. Identifying coordination patterns among various tongue muscles can provide insights into speech motor control and help in developing new therapeutic and rehabilitative strategies. Method: We…

Purpose: This study aimed to test whether (and how) somatosensory feedback signals from the vocal tract affect concurrent unimodal visual speech perception. Method: Participants discriminated pairs of silent visual utterances of vowels under 3 experimental conditions: (a) normal (baseline) and while holding either (b) a bite block or (c) a lip…

This study aims to evaluate the effects of a non-routine problem solving instruction on the brain hemisphericity of the 7th graders (aged 13-14 years). One sample experimental design was used and twenty-one seventh graders participated in the study. Validated by Kök (2005), Brain Hemisphericity Inventory (BHI) was conducted to the experimental…

The present study used event-related potentials to investigate whether the processing of grammatical gender agreement involving gender regular and irregular forms recruit the same or distinct neurocognitive mechanisms and whether different grammatical gender agreement conditions elicit the same or diverse ERP signals. Native speakers of Brazilian…

Heterogeneous effects of semantic distance in language production have sparked a debate on the central assumption of many language production models, namely that lexical selection is a competitive process. In the present ERP study, we manipulated semantic distance in the picture word interference (PWI) paradigm systematically within taxonomic…

Purpose: Degraded temporal processing associated with aging may be a contributing factor to older adults' hearing difficulties, especially in adverse listening environments. This degraded processing may affect the ability to distinguish between words based on temporal duration cues. The current study investigates the effects of aging and hearing…

Research over the past three decades has seen a revived interest in the way the human body--and the way in which it is perceived--interacts with aspects of our experience. Consequently, interoception (i.e. the perception of physiological feedback from the body) has recently been shown to be associated with a wide range of cognitive, emotional, and…

Looking at hearing loss through the WHO-ICD model for disability reveals that auditory interventions do not necessarily address all of the components of auditory disability. Auditory training has been proposed as a solution to address activity-level deficits. The purpose of this study was to examine structure- and activity-level changes as the…

The cortex, hippocampus, and striatum support dissociable forms of memory. While each of these regions contains specialized circuitry supporting their respective functions, all structure their activities across time with delta, theta, and gamma rhythms. We review how these oscillations are generated and how they coordinate distinct memory systems…

Production and comprehension have long been viewed as inseparable components of language. The study of vision, by contrast, has centered almost exclusively on comprehension. Here we investigate drawing--the most basic form of visual production. How do we convey concepts in visual form, and how does refining this skill, in turn, affect recognition?…

The achievement motive is one of the core motives of human behavior and can be divided into two motives: an approach motive (i.e., hope for success [HS]), and an avoidance motive (i.e., fear of failure [FF]). Research has demonstrated that frontal electroencephalogram (EEG) asymmetry in the alpha frequency band is an important marker for…

The "n"-back task is likely the most popular measure of working memory for functional magnetic resonance imaging (fMRI) studies. Despite accumulating neuroimaging studies with the "n"-back task and children, its neural representation is still unclear. fMRI studies that used the "n"-back were compiled, and data from…

Purpose: The aims of the study were to assess and compare grammatical deficits in written and spoken language production in subjects with agrammatic primary progressive aphasia (agPPA) and in subjects with agrammatism in the context of dominant apraxia of speech (DAOS) and to investigate neuroanatomical correlates. Method: Eight agPPA and 21 DAOS…

Gesture is an integral part of children's communicative repertoire. However, little is known about the neurobiology of speech and gesture integration in the developing brain. We investigated how 8- to 10-year-old children processed gesture that was essential to understanding a set of narratives. We asked whether the functional neuroanatomy of…

Abilities to encode and remember events in their spatiotemporal context (episodic memory) rely on brain regions that mature late during childhood and are supported by sleep. We compared the temporal dynamics of episodic memory formation and the role of sleep in this process between 62 children (8-12 years) and 57 adults (18-37 years). Subjects…