This study investigates the influence of semantic maturation on early lexical development by examining the impact of contextual diversity--known to influence semantic development--on word promotion from receptive to productive vocabularies (i.e., comprehension-expression gap). Study 1 compares the vocabularies of 3685 American-English-speaking…

Cultural experiences can influence how people attend to different emotional cues. Whereas semantic content explicitly describes feelings, vocal tone conveys implicit information regarding emotions. This cross-cultural study examined children's attention to emotional cues in spoken words. The sample consisted of 121 European American (EA) and 120…

Although the size of a child's vocabulary associates with language-processing skills, little is understood regarding how this relation emerges. This investigation asks whether and how the structure of vocabulary knowledge affects language processing in English-learning 24-month-old children (N = 32; 18 F, 14 M). Parental vocabulary report was used…

Many assume that cognitive and linguistic processes, such as semantic knowledge (SK) and self-regulation (SR), subserve learned skills like reading. However, complex models of interacting and bootstrapping effects of SK, SR, instruction, and reading hypothesize reciprocal effects. Testing this "lattice" model with children (n = 852)…

Assesses whether 30 children aged three-five years had a preferred direction in responding to "when"-questions and whether this preference could be influenced by story structure. Results indicated that children showed a preference for "after"-type responses and that productions of "before" were more likely to be…

Studied bilingual children and children learning a second language using a picture-word interference task. The printed distractors interfered with naming both on trials where the distractor and naming language were the same and on trials where they were different. These and other results question whether an "input switch" operates for bilingual…

Analyzes the roles of verbal coding skills, processing efficiency, and memory ability in accounting for individual and developmental differences in the reading comprehension of children in grades 3 through 8. Results indicate that skill differences can arise through ability differences at two independent levels--processing speed and memory.…

Two studies of toddlers and children with autism, mentally handicapped children, and normal toddlers examined whether autistic toddlers used Speaker's Direction of Gaze (SDG) strategy or less powerful Listener's Direction of Gaze (LDG) strategy to learn a word for a novel object. Results suggest autistic toddlers are insensitive to speaker's gaze…