Publications by authors named "V Harrar"

Article Synopsis
  • Brain plasticity enables the brain to adapt and reorganize following sensory loss, such as after an amputation, leading to potential improvements in touch perception.
  • A study was conducted to assess whether temporary sensory input loss from anesthetic blocking could enhance touch perception on adjacent fingers and whether it also interacts with sensory learning through training.
  • Results indicated that the sensory deprivation improved tactile perception on neighboring fingers and significantly boosted learning effects during training, suggesting new clinical applications for enhancing sensation through sensory deprivation and learning integration.
View Article and Find Full Text PDF

Video-based eye trackers have enabled major advancements in our understanding of eye movements through their ease of use and their non-invasiveness. One necessity to obtain accurate eye recordings using video-based trackers is calibration. The aim of the current study was to determine the feasibility and reliability of alternative calibration methods for scenarios in which the standard visual-calibration is not possible.

View Article and Find Full Text PDF

Previous studies have shown that eye and arm movements tend to be intrinsically coupled in their behavior. There is, however, no consensus on whether planning of eye and arm movements is based on shared or independent representations. One way to gain insight into these processes is to compare how exogenous attentional modulation influences the temporal and spatial characteristics of the eye and the arm during single or combined movements.

View Article and Find Full Text PDF

Purpose: Fetal alcohol spectrum disorder (FASD) is a developmental disease characterized by behavioral problems and physical defects including malformations of the eye and associated optical defects. How these malformations affect retinal functioning is not well known, although animal models have suggested that scotopic vision is particularly deficient. Age is also known to affect scotopic vision.

View Article and Find Full Text PDF

The importance of multisensory integration for perception and action has long been recognised. Integrating information from individual senses increases the chance of survival by reducing the variability in the incoming signals, thus allowing us to respond more rapidly. Reaction times (RTs) are fastest when the components of the multisensory signals are simultaneous.

View Article and Find Full Text PDF