Human perception of visual stimuli modulated by direction of linear polarization

Carlyon et al (2001 Journal of Experimental Psychology: Human Perception and Performance27 115–127) have reported that the buildup of auditory streaming is reduced when attention is diverted to a competing auditory stimulus. Here, we demonstrate that a reduction in streaming can also be obtained by attention to a visual task or by the requirement to count backwards in threes. In all conditions participants heard a 13 s sequence of tones, and, during the first 10 s saw a sequence of visual stimuli containing three, four, or five targets. The tone sequence consisted of twenty repeating triplets in an ABA–ABA … order, where A and B represent tones of two different frequencies. In each sequence, three, four, or five tones were amplitude modulated. During the first 10 s of the sequence, participants either counted the number of visual targets, counted the number of (modulated) auditory targets, or counted backwards in threes from a specified number. They then made an auditory-streaming judgment about the last 3 s of the tone sequence: whether one or two streams were heard. The results showed more streaming when participants counted the auditory targets (and hence were attending to the tones throughout) than in either the ‘visual’ or ‘counting-backwards’ conditions.

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Human Perception Characteristics according to the Arrangement of Visual Stimuli

Journal of the Ergonomics Society of Korea ◽

10.5143/jesk.2020.39.3.257 ◽

2020 ◽

Vol 39 (3) ◽

pp. 257-266

Author(s):

Yejin Lee ◽

Kwang Tae Jung ◽

Hyun Chul Lee

Keyword(s):

Visual Stimuli ◽

Human Perception

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Computational simulation of human perception of spatially dependent patterns modulated by degree and angle of linear polarization

Journal of the Optical Society of America A ◽

10.1364/josaa.36.000b65 ◽

2019 ◽

Vol 36 (4) ◽

pp. B65 ◽

Cited By ~ 3

Author(s):

Gary P. Misson ◽

Shelby E. Temple ◽

Stephen J. Anderson

Keyword(s):

Linear Polarization ◽

Computational Simulation ◽

Human Perception

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Sensory experience during early sensitive periods shapes cross-modal temporal biases

eLife ◽

10.7554/elife.61238 ◽

2020 ◽

Vol 9 ◽

Cited By ~ 1

Author(s):

Stephanie Badde ◽

Pia Ley ◽

Siddhart S Rajendran ◽

Idris Shareef ◽

Ramesh Kekunnaya ◽

...

Keyword(s):

Strong Evidence ◽

Temporal Order ◽

Visual Stimuli ◽

Human Perception ◽

Sensory Experience ◽

Sensitive Period ◽

Visual Events ◽

Sustained Effects ◽

Transient Loss

Typical human perception features stable biases such as perceiving visual events as later than synchronous auditory events. The origin of such perceptual biases is unknown. To investigate the role of early sensory experience, we tested whether a congenital, transient loss of pattern vision, caused by bilateral dense cataracts, has sustained effects on audio-visual and tactile-visual temporal biases and resolution. Participants judged the temporal order of successively presented, spatially separated events within and across modalities. Individuals with reversed congenital cataracts showed a bias towards perceiving visual stimuli as occurring earlier than auditory (Expt. 1) and tactile (Expt. 2) stimuli. This finding stood in stark contrast to normally sighted controls and sight-recovery individuals who had developed cataracts later in childhood: both groups exhibited the typical bias of perceiving vision as delayed compared to audition. These findings provide strong evidence that cross-modal temporal biases depend on sensory experience during an early sensitive period.

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Cross-modal temporal biases emerge during early sensitive periods

10.1101/839514 ◽

2019 ◽

Author(s):

Stephanie Badde ◽

Pia Ley ◽

Siddhart S Rajendran ◽

Idris Shareef ◽

Ramesh Kekunnaya ◽

...

Keyword(s):

Strong Evidence ◽

Visual Stimuli ◽

Human Perception ◽

Sensory Experience ◽

Sensitive Period ◽

Visual Events ◽

Sustained Effects ◽

Sensory Modalities ◽

Transient Loss

AbstractHuman perception features stable biases, such as perceiving visual events as later than synchronous auditory events. The origin of such perceptual biases is unknown, they could be innate or shaped by sensory experience during a sensitive period. To investigate the role of sensory experience, we tested whether a congenital, transient loss of vision, caused by bilateral dense cataracts, has sustained effects on the ability to order events spatio-temporally within and across sensory modalities. Most strikingly, individuals with reversed congenital cataracts showed a bias towards perceiving visual stimuli as occurring earlier than auditory (Exp. 1) and tactile (Exp. 2) stimuli. In contrast, both normally sighted controls and individuals who could see at birth but developed cataracts during childhood reported the typical bias of perceiving vision as delayed compared to audition. Thus, we provide strong evidence that cross-modal temporal perceptual biases depend on sensory experience and emerge during an early sensitive period.

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Quickly fading afterimages: hierarchical adaptations in human perception

10.1101/666198 ◽

2019 ◽

Author(s):

Madeline E. Klinger ◽

Christian A. Kell ◽

Danko Nikolić

Keyword(s):

Prolonged Exposure ◽

Visual Stimuli ◽

Human Perception ◽

Visual Content ◽

Blank Screen ◽

Adaptive Mechanisms ◽

Fast Removal

AbstractAfterimages result from a prolonged exposure to still visual stimuli. They are best detectable when viewed against uniform backgrounds and can persist for multiple seconds. Consequently, the dynamics of afterimages appears to be slow by their very nature. To the contrary, we report here that about 50% of an afterimage intensity can be erased rapidly—within less than a second. The prerequisite is that subjects view a rich visual content to erase the afterimage; fast erasure of afterimages does not occur if subjects view a blank screen. Moreover, we find evidence that fast removal of afterimages is a skill learned with practice as our subjects were always more effective in cleaning up afterimages in later parts of the experiment. These results can be explained by a tri-level hierarchy of adaptive mechanisms, as has been proposed by the theory of practopoiesis.

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