Temporal Summation and Orientation Acuity

Angel Vassilev; Margarita Zlatkova

Temporal Summation and Orientation Acuity

Angel Vassilev, Margarita Zlatkova

Research output: Contribution to journal › Article

Abstract

The effect of stimulus exposure time (ET) on the threshold intensity, necessary for fine orientation discrimination was compared with the effect of ET on the detection threshold. Both discrimination and detection performances were studied concurrently in a two-by-two forced choice paradigm. The results suggest the existence of a mechanism with much longer temporal summation for the discrimination of small orientation differences than for the detection of the stimulus. Orientation acuity improves with ET.

Original language	English
Pages (from-to)	23-28
Journal	Acta Physiologica et Pharmacologica Bulgarica
Volume	8
Issue number	4
Publication status	Published - 1982

Cite this

Vassilev, A., & Zlatkova, M. (1982). Temporal Summation and Orientation Acuity. Acta Physiologica et Pharmacologica Bulgarica, 8(4), 23-28.

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abstract = "The effect of stimulus exposure time (ET) on the threshold intensity, necessary for fine orientation discrimination was compared with the effect of ET on the detection threshold. Both discrimination and detection performances were studied concurrently in a two-by-two forced choice paradigm. The results suggest the existence of a mechanism with much longer temporal summation for the discrimination of small orientation differences than for the detection of the stimulus. Orientation acuity improves with ET.",

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AB - The effect of stimulus exposure time (ET) on the threshold intensity, necessary for fine orientation discrimination was compared with the effect of ET on the detection threshold. Both discrimination and detection performances were studied concurrently in a two-by-two forced choice paradigm. The results suggest the existence of a mechanism with much longer temporal summation for the discrimination of small orientation differences than for the detection of the stimulus. Orientation acuity improves with ET.

M3 - Article

VL - 8

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EP - 28

JO - Acta Physiologica et Pharmacologica Bulgarica

JF - Acta Physiologica et Pharmacologica Bulgarica

SN - 0323-9950

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