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Message definition (Orientation Selective Ganglion Cell )
OSGCs have oval-shaped concentric receptive fields that favor either the horizontal or vertical orientation. The stimuli that were used in the study by Levick in 1967 to demonstrate the orientation selectivity of these cells were narrow strips of light oriented in different directions on the receptive fields. The cells responded to these stationary strips of light when presented at the preferred orientation of the ganglion cell. Some of these cells responded only when the strip of light was presented in the horizontal direction, and the others responded more strongly when presented in the vertical direction. It was also determined that these cells respond to strips of light when the intensity contrast between the strip of light and the background is 1/5.
OSGCs have oval-shaped concentric receptive fields that favor either the horizontal or vertical orientation. The stimuli that were used in the study by Levick in 1967 to demonstrate the orientation selectivity of these cells were narrow strips of light oriented in different directions on the receptive fields. The cells responded to these stationary strips of light when presented at the preferred orientation of the ganglion cell. Some of these cells responded only when the strip of light was presented in the horizontal direction, and the others responded more strongly when presented in the vertical direction. It was also determined that these cells respond to strips of light when the intensity contrast between the strip of light and the background is 1/5. Translation ===수용장 구조(Receptive Field Structure)=== 수용장 구조(Receptive Field Structure) 오리엔테이션 선택적 신경절 세포는 타원형으로 수평 또는 수직 오리엔테이션을 선호하는 동심의 수용장을 가지고 있습니다. 1967년 Levick의 연구에서 이들 세포의 오리엔테이션 선택성을 보여주기 위해 사용된 자극은 수용장에 서로 다른 방향으로 놓인 얇은 띠 형태의 빛이었습니다. 신경절 세포가 선호하는 오리엔테이션으로 주어졌을 때 이들 세포들은 이러한 고정된 띠 형태의 빛에 반응을 보였습니다. 이들 세포중 어떤 것들은 빛 띠가 가로 방향으로 주어졌을 때만 반응을 보인 반면 어떤 세포들은 세로 방향으로 주어졌을 때 강한 반응을 보였습니다. 또한 이들 세포들은 빛 띠와 배경간의 강도 대비가 1/5인 경우에 빛 띠에 반응을 한다는 것을 알아냈습니다.
