This study explored performance on expressive and receptive graphic symbol tasks and spoken comprehension by individuals who use augmentative and alternative communication (AAC) as well as the relationship of performance with participants' skills and characteristics. Participants were 19 children and youth (aged 5- to 18-years-old) who used aided…

How are scene representations stored in memory? Researchers have often posited that scene representations have a hierarchical structure with background elements providing a scaffold for more detailed foreground elements. To further investigate scene representation and the role of background and foreground information, we introduced a new stimulus…

Many modern theories propose that perceptual information is represented by the sensorimotor activity elicited by the original stimulus. Scanpath theory (Noton & Stark, 1971) predicts that reinstating a sequence of eye fixations will help an observer recognize a previously seen image. However, the only studies to investigate this are…

Maljkovic and Nakayama have demonstrated memory influences in singleton search from one trial to the next, an effect they termed "priming of pop-out" (PoP). This effect was described as resulting from the persistence of an implicit memory trace, the influence of which could be observed for around 5-8 subsequent trials. Thomson and…

Report of a second target (T2) is impaired when presented within 500 ms of the first (T1). This attentional blink (AB) is known to cause a delay in T2 processing during which T2 must be stored in a labile memory buffer. We explored the buffer's characteristics using different types of masks after T2. These characteristics were inferred by…

We explored the effect of the degree of conceptual similarity between a witnessed event and an extra-event narrative on eyewitness suggestibility. Experiments 1A and 1B replicated Allen and Lindsay's (1998) finding that subjects sometimes intrude details from a narrative description of one event into their reports of a different visual event.…

Objective: To determine whether the presence of coexisting disorders affects memory, visual-motor skills, and daily functioning in children with ADHD. Method: Eighty-four boys and 18 girls (8 to 16 years old) participate in this study. Twenty children meet criteria for ADHD alone, 42 children for ADHD plus one other disorder, and 40 children for…