To determine structural brain correlates of naming abilities in older adults, we tested 24 individuals aged 56-79 on two confrontation-naming tests (the Boston Naming Test (BNT) and the Action Naming Test (ANT)), then collected from these individuals structural Magnetic-Resonance Imaging (MRI) and Diffusion Tensor Imaging (DTI) data. Overall, several regions showed that greater gray and white m...

The lexical decision (LD) and naming (NAM) tasks are ubiquitous paradigms that employ printed word identification. They are major tools for investigating how factors like morphology, semantic information, lexical neighborhood and others affect identification. Although use of the tasks is widespread, there has been little research into how performance in LD or NAM relates to reading ability, a d...

Objectives: The aim of this research is to design a neuro-cognitive program, based on dysfunctions and alterations of some neural circuits in dyslexics. The visual and auditory working memories in pre-schoolers were evaluated with this program in order to early screening for dyslexia. Methods: This study is a longitudinal descriptive research. A total of 259 randomly selected pre-schoolers, wi...

In picture-word interference experiments, participants name pictures (e.g., of a cat) while trying to ignore distractor words. Mean response time (RT) is typically longer with semantically related distractor words (e.g., dog) than with unrelated words (e.g., shoe), called semantic interference. Previous research has examined the RT distributional characteristics of distractor effects by perform...

The purpose of this study was to assess the role of common motor responses as the "speaker" behavior on stimulus class formation, and the emergence of functional classes. Experiment 1 examined whether training one motor response to a set of three stimuli and a second motor response to another set of three stimuli would result in correct category-sort responses for 5 typically developing prescho...

PURPOSE This study examined the relationship between semantic enrichment and naming in children asked to extend taught words to untrained exemplars. METHOD Sixteen typically developing children ( M = 32.63 months, SD = 4.02) participated in 3 word learning conditions that varied semantic enrichment via iconic (shape, function) or point gesture. At test, children named taught referents and 2 e...