Perception & Psychophysics
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Light and dark adaptation of visually perceived eye level controlled by visual pitch
Perception & Psychophysics - Tập 57 - Trang 84-104 - 1995
The pitch of a visual field systematically influences the elevation at which a monocularly viewing subject sets a target so as to appear at visually perceived eye level (VPEL). The deviation of the setting from true eye level averages approximately 0.6 times the angle of pitch while viewing a fully illuminated complexly structured visual field and is only slightly less with one or two pitched-from...... hiện toàn bộ
Grouping by proximity: Selective attention measures
Perception & Psychophysics - Tập 18 - Trang 355-361 - 1975
The role of element proximity in perceptual grouping was examined in tasks requiring speeded discrimination of two-element visual patterns. Grouping of two elements was defined as the failure of attention to be focused on one element selectively in filtering tasks where only that one element was relevant to the discrimination. Failure of selective attention was measured by the degree of interferen...... hiện toàn bộ
Sự chú ý bán võng mạc dưới điều kiện tranh đấu màu sắc Dịch bởi AI
Perception & Psychophysics - Tập 5 - Trang 246-248 - 1969
Các đối tượng tham gia nghiên cứu quan sát các mảng kích thích màu sắc sao cho có hai hiện tượng tranh đấu màu sắc xảy ra đồng thời. Cụ thể, có hai mảng màu khác nhau, mỗi mảng nằm ở nửa bên trái của hai trường nhìn, và đồng thời, các mảng tranh đấu cũng có mặt ở hai nửa bên phải. Như dự kiến, các cảm nhận từ hai mắt thường tương ứng với sự chiếm ưu thế của một trong hai mắt. Tuy nhiên, trong một ...... hiện toàn bộ
#tranh đấu màu sắc #cảm nhận nhìn #võng mạc #chiếm ưu thế thị giác
A signal detection theory analysis of a category judgment experiment
Perception & Psychophysics - Tập 7 - Trang 38-42 - 1970
A category-judgment experiment is the reported. Rating-scale judgments of loudness were made with five or eight intensity levels of a tone and with different frequencies of presentation of the stimuli. Obtained ROC curves for pairs of stimuli were judged to support application of signal-detection theory. However, certain common assumptions of the theory are called into question by the data. Discri...... hiện toàn bộ
The perception of 3-D structure from contradictory optical patterns
Perception & Psychophysics - Tập 57 - Trang 826-834 - 1995
Two experiments investigated observers’ perceptions of 3-D structure when optical sources of information were contradictory. When motion and stereoscopic disparities specified different surfaces, the perceptual outcome depended strongly on the direction of curvature present within each modality. Previous research has shown that the perception of surface slant and curvature is anisotropic for both ...... hiện toàn bộ
Electrocutaneous spatial integration at threshold: The effects of electrode size
Perception & Psychophysics - Tập 48 - Trang 389-397 - 1990
Five experiments were carried out to investigate the effects of electrode size on threshold for current pulses that flowed between the ventral and dorsal sides of the right forearm. The main result was that the total current threshold decreases as the size of the cathode and anode increases at least up to 15 mm in diameter. To account for this finding, a neural summation model was proposed, assumi...... hiện toàn bộ
Loudness “ratios” and “differences” involve the same psychophysical operation
Perception & Psychophysics - - 1977
Orientation effects on line afterimages
Perception & Psychophysics - Tập 12 - Trang 409-416 - 1972
Lines of various orientations were viewed as prolonged afterimages in six experiments. The duration of unitary appearance was not influenced by line orientation for monocular afterimages, but there was a marginal effect for afterimages generated binocularly; vertical and horizontal lines tended to be visible for longer than did 45-deg lines. Measures of fragmentation frequency and the latency to t...... hiện toàn bộ
Orientation contrast effects in the rod-and-frame test
Perception & Psychophysics - Tập 25 - Trang 419-424 - 1979
Previous research indicates that a tilted visual display is capable of inducing eye torsion and an illusion of self-tilt in objectively upright observers. These effects may contribute to performance errors on the rod-and-frame test by rotating the perceived axes of visual space toward the tilted frame. The kinesthetic-matching method was used in the present study to see whether an effect of the vi...... hiện toàn bộ
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