Studies investigating the neural bases of cognitive phenomena such as perception, attention and decisionmaking increasingly employ multialternative task designs. It is essential in such designs to distinguish the neural correlates of behavioral choices arising from changes in perceptual factors, such as enhanced sensitivity to sensory information, from those arising from changes in decisional f...

Perceptual learning improves detection and discrimination of relevant visual information in mature humans, revealing sensory plasticity. Whether visual perceptual learning affects motor responses is unknown. Here we implemented a protocol that enabled us to address this question. We tested a perceptual response (motion direction estimation, in which observers overestimate motion direction away ...

Motion information available to different sensory modalities can interact at both perceptual and post-perceptual (i.e., decisional) stages of processing. However, to date, researchers have only been able to demonstrate the influence of one of these components at any given time, hence the relationship between them remains uncertain. We addressed the interplay between the perceptual and post-perc...

This study was an attempt to shed light on the relationship between perceptual learning styles and perceptual teaching styles of Iranian EFL learners and teachers. It further investigated the relationship between perceptual learning style and the age, gender, and proficiency of Iranian EFL learners. A total of 112 students and 23 teachers participated in this study. The data was collected using...

Purpose: Comprehensive evaluation of velopharyngeal insufficiency (VPI) typically includes auditoryperceptual assessment, nasometry, and anatomical evaluations. At times, these examinations are limited by the resources, invasiveness, time and expertise required to perform them. In such instances, the mirror-fogging test would be an ideal screening tool for VPI as it can be performed simply and ...

Impairments in visual perceptual organization abilities are a repeatedly observed cognitive deficit in schizophrenia. These impairments have been found to be most prominent among patients with histories of poor premorbid social functioning, disorganized symptoms, and poor clinical outcomes. Despite the demonstration of significant sex differences for these clinical factors in schizophrenia, the...

Segmenting the retinal vessels from fundus images is a prerequisite for many CAD systems for the automatic detection of diabetic retinopathy lesions. So far, research efforts have concentrated mainly on the accurate localization of the large to medium diameter vessels. However, failure to detect the smallest vessels at the segmentation step can lead to false positive lesion detection counts in ...

This investigation explores perceptual and acoustic characteristics of children's successful and unsuccessful productions of /t/ and /k/, with a specific aim of exploring perceptual sensitivity to phonetic detail, and the extent to which this sensitivity is reflected in the acoustic domain. Recordings were collected from 4- to 8-year-old children with a speech sound disorder (SSD) who misarticu...

Studies investigating the neural bases of cognitive phenomena increasingly employ multialternative detection tasks that seek to measure the ability to detect a target stimulus or changes in some target feature (e.g., orientation or direction of motion) that could occur at one of many locations. In such tasks, it is essential to distinguish the behavioral and neural correlates of enhanced percep...