منابع مشابه
Processing Facial Expressions of Emotion: Upright vs. Inverted Images
We studied discrimination of briefly presented upright vs. inverted emotional facial expressions (FEs), hypothesizing that inversion would impair emotion decoding by disrupting holistic FE processing. Stimuli were photographs of seven emotion prototypes, of a male and female poser (Ekman and Friesen, 1976), and eight intermediate morphs in each set. Subjects made speeded Same/Different judgment...
متن کاملGeneralization to novel images in upright and inverted faces.
An image of a face depends not only on its shape, but also on the viewpoint, illumination conditions, and facial expression. A face recognition system must overcome the changes in face appearance induced by these factors. Two related questions were investigated: the capacity of the human visual system to generalize the recognition of faces to novel images, and the level at which this generaliza...
متن کاملUsefulness of grayscale inverted images in addition to standard images in digital mammography
BACKGROUND Mammography is essential for early diagnosis of breast cancer, which is the most common type of cancer in females that is associated with a high mortality rate. We investigated whether evaluation of the grayscale inverted images of mammograms would aid in increasing the diagnostic sensitivity of the mammographic imaging technique. METHODS Our study included 636 mammograms of 159 wo...
متن کاملSurgical images: musculoskeletal acetabular cartilage delamination demonstrated by magnetic resonance arthrography: inverted "Oreo" cookie sign.
a 5-year history of persistent left hip pain, which had been constant in nature over the last several months with increased severity after high activity and sitting for long periods. The pain was always present in the groin area, and would occasionally radiate to the knee. There was no history of hip disorders or other joint problems. The patient had no other significant problems or complaints....
متن کاملSensitivity to the displacement of facial features in negative and inverted images.
Subjects have previously been reported to show difficulties in recognising faces which are either inverted or in photographic negative. Experiments are reported in which a two-alternative forced-choice technique was used to measure sensitivity for distinguishing faces which have been modified by having the eyes moved vertically or horizontally. Subjects were less sensitive to such changes for i...
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ژورنال
عنوان ژورنال: Nature
سال: 1896
ISSN: 0028-0836,1476-4687
DOI: 10.1038/053414c0