Features as an emergent product of computing perceptual cues relative to expectations

2011 ◽  
pp. 197-236 ◽  
Author(s):  
Bob McMurray ◽  
Jennifer Cole ◽  
Cheyenne Munson
Keyword(s):  
Perceptual Cues

Age-Related Differences in Processing Dynamic Information to Identify Vowel Quality

1992 ◽  
Vol 35 (4) ◽  
pp. 892-902 ◽  
Author(s):  
Robert Allen Fox ◽  
Lida G. Wall ◽  
Jeanne Gokcen
Keyword(s):  
Older Adults ◽  
Vowel Quality ◽  
Perceptual Cues ◽  
Dynamic Information ◽  
Process Dynamic ◽  
Center Condition ◽  
Age Related ◽  
Control Version ◽  
Older Subjects ◽  
Whole Word

This study examined age-related differences in the use of dynamic acoustic information (in the form of formant transitions) to identify vowel quality in CVCs. Two versions of 61 naturally produced, commonly occurring, monosyllabic English words were created: a control version (the unmodified whole word) and a silent-center version (in which approximately 62% of the medial vowel was replaced by silence). A group of normal-hearing young adults (19–25 years old) and older adults (61–75 years old) identified these tokens. The older subjects were found to be significantly worse than the younger subjects at identifying the medial vowel and the initial and final consonants in the silent-center condition. These results support the hypothesis of an age-related decrement in the ability to process dynamic perceptual cues in the perception of vowel quality.

Top-Down Processing and Visual Reorientation Illusions in a Virtual Reality Environment

2004 ◽  
Vol 63 (3) ◽  
pp. 143-149 ◽  
Author(s):  
Fred W. Mast ◽  
Charles M. Oman
Keyword(s):  
Virtual Reality ◽  
Visual Processing ◽  
Line Length ◽  
Perceptual Cues ◽  
Virtual Reality Environment ◽  
Top Down ◽  
Test Conditions ◽  
The Subject ◽  
Processing Mechanisms

The role of top-down processing on the horizontal-vertical line length illusion was examined by means of an ambiguous room with dual visual verticals. In one of the test conditions, the subjects were cued to one of the two verticals and were instructed to cognitively reassign the apparent vertical to the cued orientation. When they have mentally adjusted their perception, two lines in a plus sign configuration appeared and the subjects had to evaluate which line was longer. The results showed that the line length appeared longer when it was aligned with the direction of the vertical currently perceived by the subject. This study provides a demonstration that top-down processing influences lower level visual processing mechanisms. In another test condition, the subjects had all perceptual cues available and the influence was even stronger.

Conceptualization of perceptual cues guided by metaphor, depth, and imagined perspective

2009 ◽  
Author(s):  
Timothy C. Clausner ◽  
Evan M. Palmer ◽  
Christopher M. Brown ◽  
Carolina F. Bates ◽  
Philip J. Kellman
Keyword(s):  
Perceptual Cues

Semantic and perceptual cues in the acquisition of second language vocabulary

1997 ◽  
Author(s):  
Erica Michael ◽  
Judith Kroll ◽  
Aruna Sanicaranarayanan
Keyword(s):  
Second Language ◽  
Perceptual Cues

Demonstration: Virtual Patient Immersive Trainer to Train Perceptual Skills Using Augmented Reality

2020 ◽  
Vol 64 (1) ◽  
pp. 470-472
Author(s):  
Christen E. Sushereba ◽  
Laura G. Militello
Keyword(s):  
Medical Students ◽  
Augmented Reality ◽  
Student Performance ◽  
Group Interaction ◽  
Virtual Patient ◽  
Perceptual Cues ◽  
Perceptual Skills ◽  
Individual Interaction ◽  
Severity Of Injury ◽  
Microsoft Hololens

In this session, we will demonstrate the Virtual Patient Immersive Trainer (VPIT). The VPIT system uses augmented reality (AR) to allow medics and medical students to experience a photorealistic, life-sized virtual patient. The VPIT supports learners in obtaining the perceptual skills required to recognize and interpret subtle perceptual cues critical to assessing a patient’s condition. We will conduct an interactive demonstration of the virtual patient using both a tablet (for group interaction) and an AR-enabled headset (Microsoft HoloLens) for individual interaction. In addition, we will demonstrate use of the instructor tablet to control what the learner sees (e.g., injury types, severity of injury) and to monitor student performance.

scholarly journals Summation of perceptual cues in natural visual scenes

2008 ◽  
Vol 275 (1649) ◽  
pp. 2299-2308 ◽  
Author(s):  
M To ◽  
P.G Lovell ◽  
T Troscianko ◽  
D.J Tolhurst
Keyword(s):  
Visual Processing ◽  
Neural System ◽  
Stimulus Dimension ◽  
Two Dimensions ◽  
Natural Scenes ◽  
Perceptual Cues ◽  
Combination Rules ◽  
Threshold Detection ◽  
Visual Scenes ◽  
Image Pairs

Natural visual scenes are rich in information, and any neural system analysing them must piece together the many messages from large arrays of diverse feature detectors. It is known how threshold detection of compound visual stimuli (sinusoidal gratings) is determined by their components' thresholds. We investigate whether similar combination rules apply to the perception of the complex and suprathreshold visual elements in naturalistic visual images. Observers gave magnitude estimations (ratings) of the perceived differences between pairs of images made from photographs of natural scenes. Images in some pairs differed along one stimulus dimension such as object colour, location, size or blur. But, for other image pairs, there were composite differences along two dimensions (e.g. both colour and object-location might change). We examined whether the ratings for such composite pairs could be predicted from the two ratings for the respective pairs in which only one stimulus dimension had changed. We found a pooling relationship similar to that proposed for simple stimuli: Minkowski summation with exponent 2.84 yielded the best predictive power ( r =0.96), an exponent similar to that generally reported for compound grating detection. This suggests that theories based on detecting simple stimuli can encompass visual processing of complex, suprathreshold stimuli.

Perceptual cues used by beavers foraging on woody plants

1994 ◽  
Vol 47 (6) ◽  
pp. 1482-1484 ◽  
Author(s):  
Christine M. Doucet ◽  
Russell A. Walton ◽  
John M. Fryxell
Keyword(s):  
Woody Plants ◽  
Perceptual Cues

Some Common Myths About Voice Therapy

1992 ◽  
Vol 23 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Mary Pannbacker
Keyword(s):  
Voice Disorders ◽  
Voice Therapy ◽  
Perceptual Cues ◽  
Developmental Factors

There are many concepts about voice therapy that are at best, misleading and at worst, incorrect. Through this review, it is hoped that some of these misconceptions will be resolved. Issues reviewed include developmental factors, iatrogenic voice disorders, breathing habits, optimum pitch, palate training, and etiology based on perceptual cues.

Labeling, Attention and Perception, a Developmental Study

1979 ◽  
Vol 49 (1) ◽  
pp. 47-59
Author(s):  
Abraham Sagi
Keyword(s):  
Cross Cultural ◽  
Developmental Study ◽  
Perceptual Cues ◽  
Experimental Conditions ◽  
Verbal Cues ◽  
Linguistic Cues ◽  
Differential Perception ◽  
American Children ◽  
Attention And Perception ◽  
Cultural Data

96 7- and 9-yr.-olds were under four experimental conditions. A “distinctive label” group ( n = 24) associated four different gender-cued labels with four infants' faces. An “equivalent label” group ( n = 24) associated only two of these labels. There were also two no-label groups ( ns =: 24), “differential perception” and “perception.” In the former, perceptual cues were provided; no cues were provided in the latter. The main measure was a test of perception. 9-yr.-olds were not affected by the labels, 7-yr.-olds were but more significantly so during initial trials. It is proposed that perception is affected by labels, learning, and selective attention. These effects are determined developmentally. As age increases the effects of verbal cues diminish and of perceptual cues increase. The findings are related to cross-cultural data, indicating that Israeli toddlers classify according to gender earlier than do American children. This is probably because Hebrew more than English contains distinctive linguistic cues related to sex.

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