Individuals with autism spectrum disorder (ASD) demonstrate intact or superior local processing of visual-spatial tasks. We investigated the hypothesis that in a disembedding task, autistic individuals exhibit a more local processing style than controls, which is reflected by altered electromagnetic brain activity in response to embedded stimuli…

The aim of this study was to investigate the perception of possibilities for action (i.e., affordances) that depend on one's movement capabilities, and more specifically, the passability of a shrinking gap between converging obstacles. We introduce a new optical invariant that specifies in intrinsic units the minimum locomotor speed needed to…

When two targets (T1, T2) are presented amongst a rapid stream of distractors, T2 accuracy is impaired if the targets are separated by at least one distractor (attentional blink). However, this impairment largely disappears if the targets follow one another directly (lag-1 sparing), and, in fact, as many as four or five consecutive targets may be…

Advances in auditory research suggest that gamma-band synchronization of frequency-specific cortical loci could be responsible for the integration of pure tones (harmonics) into harmonic complex tones. Thus far, evidence for such a mechanism has been revealed in neurophysiological studies, with little corroborative psychophysical evidence. In six…

During repeating sequences of low (A) and high (B) tones, perception of two separate streams ("streaming") increases with greater frequency separation ([delta]f) between the A and B tones; in contrast, a prior context with large [delta]f results in less streaming during a subsequent test pattern. The purpose of the present study was to…

We investigated the neural correlates of attentional modulation in the perceptual comparison process for detecting feature-binding changes in an event-related functional magnetic resonance imaging (fMRI) experiment. Participants performed a variant of a cued change detection task. They viewed a memory array, a spatial retro-cue, and later a probe…

An infrequent physical increase in the intensity of an auditory stimulus relative to an already loud frequently occurring "standard" is processed differently than an equally perceptible physical decrease in intensity. This may be because a physical increment results in increased activation in two different systems, a transient and a change…

This qualitative multiple case study documents how two African American women social studies teachers utilise their lived experiences as the curricular foundation for teaching differing notions of citizenship to African-American students. Particular events, experiences, and relationships helped shape their perception of their roles as teachers and…

This study examines the acculturative challenges facing non-English speaking background (NESB) international doctoral students in the process of discipline enculturation. Twenty NESB doctoral students at three New Zealand universities from eleven countries participated in the semistructured interviews. The study has found that their transformative…

Acoustic and perceptual studies investgate B2-level Polish learners' acquisition of second language (L2) English word-boundaries involving word-initial vowels. In production, participants were less likely to produce glottalization of phrase-medial initial vowels in L2 English than in first language (L1) Polish. Perception studies employing word…

This study investigated the role of inhibition in second language (L2) learners' phonological processing. Participants were Spanish learners of L2 English and American learners of L2 Spanish. We measured inhibition through a retrieval-induced inhibition task. Accuracy of phonological representations (perception and production) was assessed through…

Background: Evidence exists that there are two main underlying cognitive factors in mathematical difficulties: working memory and number sense. It is suggested that real math difficulties appear when both working memory and number sense are weak, here referred to as the double deficit (DD) hypothesis. Aims: The aim of this study was to test the DD…

Visual representations are essential for science understanding, but many students have poor diagrammatic reasoning skills. Previous research showed that teaching high school and college students about the conventions of diagrams (COD) can improve diagrammatic reasoning. In this study, middle school science students received COD instruction…

The present study aims to reveal some facts concerning first language (L[subscript 1]) and second language (L[subscript 2]) spoken-word processing in unbalanced proficient bilinguals using behavioral measures. The intention here is to examine the effects of auditory repetition word priming and semantic priming in first and second languages of…

In this descriptive study, researchers surveyed choristers (N = 630) from 16 mid-level collegiate choirs nationwide to investigate their perceptions and behaviors as they related to the strategies used by directors to facilitate ensemble identity. Also investigated were the factors affecting choristers' dedication to choir and their intentions…