Lateral masking for letters with unlimited viewing time

Real Time Speech Separation by Lateral Inhibition and Masking

In this paper, we propose a simple algorithm to separate a speech signals with the highest energy from a mixture of sound sources . We use two microphones and assume that one speaker is close to one microphone, and the other speaker is close to another microphone. In the system we use the concept of auditory filter banks together with lateral inhibition, intensity interaural difference and mask...

Noise masking reveals channels for second-order letters

We investigate the channels underlying identification of second-order letters using a critical-band masking paradigm. We find that observers use a single 1-1.5 octave-wide channel for this task. This channel's best spatial frequency (c/letter) did not change across different noise conditions (indicating the inability of observers to switch channels to improve signal-to-noise ratio) or across di...

Deeper attentional masking by lateral objects in children with autism.

Autism spectrum disorder (ASD) is often associated with a detail-oriented perception and overselective attention in visual tasks, such as visual search and crowding. These results were obtained manipulating exclusively the spatial properties of the stimuli: few is known about the spatio-temporal dynamics of visual processing in ASD. In this study we employed an attentional masking (AM) paradigm...

Cortical dynamics of lateral inhibition: metacontrast masking.

The dynamic properties of a neural network model of visual perception, called the boundary contour system, explain characteristics of metacontrast visual masking. Computer simulations of the model, with a single set of parameters, demonstrate that it accounts for 9 key properties of metacontrast masking: Metacontrast masking is strongest at positive stimulus onset asynchronies (SOAs); decreasin...

Masking speech with its time-reversed signal