To expand our understanding of script-general and script-specific principles in the learning of letter names, we examined how three characteristics of alphabet letters -- their frequency in printed materials, order in the alphabet, and visual similarity to other letters -- relate to children's letter-name knowledge in four languages with three…

Objective: To examine the ability of the flicker task to demonstrate greater utility in discriminating performance in young adults with and without ADHD compared to the Conners' CPT (CCPT). Method: Flicker task and CCPT performance were compared between an ADHD (n = 28) and control (n = 30) group of college students. Results: This study replicated…

Investigates the sensitivity of children aged 6 to 10 to stylistic properties of line drawings. Subjects were asked to judge the similarity of 12 drawings which varied along the dimensions of clarity, expressiveness, and line thickness. In contrast to previous research, the youngest children had the ability to make multidimensional…

An experiment was carried out on perceived difficulty of a simple attention task. Seven complex stimulus matrices were used, consisting of different numbers of pairs of consonants. The subjects' task was to search for targets determined by the experimenter one by one. Search time was measured as performance criterion. Perceived difficulty of the…

The production and discrimination of eight basic facial expressions were investigated among 34 preschool children three to five years of age. Children's productions were elicited and videotaped under four different prompting conditions. Children's discrimination of drawings depicting facial expressions, sociometric ratings, and spontaneous…

Visual search has been studied extensively, yet little is known about how its constituent processes affect subsequent emotional evaluation of searched-for and searched-through items. In 3 experiments, the authors asked observers to locate a colored pattern or tinted face in an array of other patterns or faces. Shortly thereafter, either the target…

An experiement was conducted to test the hypothesis that interest inventory items would function as reinforcing stimuli in a visual discrimination task. When previously rated liked and disliked items from the Strong Vocational Interest Blank were differentially presented following one of two responses, subjects learned to respond to the stimulus…