Chapter 6 - 1,4,6 receive information from the left eye...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1,4,6 receive information from the left eye 2,3,5 receive information from the right eye 1,2 = magnocellular 3-6 = parvocellular Light layers = koniocelluar of CO-rich neurons in the V2 area consists of three types of stripes: thick, thin, and pale stripes. within the blobs are sensitive to color, and all of them are sensitive to low spatial frequencies. lob, neurons show sensitivity to orientation, movement, spatial frequency, and binocular disparity. Taken directly from Physiology of Behavior, 10 th edition by Neil Carlson Chapter 6: Vision Chapter 6 covers the topic of vision. The opening section introduces the topics of sensory processing and the anatomy of the primate visual system, including the anatomy of the eye, the photoreceptors within the retina, and the neural pathways that connect the retina to visual cortex. The second section of the vision chapter introduces the notion of receptive fields and describes the organization of the retinal receptive fields. The processing of color coding at the retina and the lateral geniculate is described. Negative afterimages are related to retinal ganglion cell activity. The third section of chapter 6 describes the role played by the striate cortex in processing of information related to orientation and movement, texture, and color. Spatial frequency analyses are discussed in relation to visual processing. The blindsight phenomenon is discussed as an example of how sensory processing can occur in the absence of conscious awareness. The final section of chapter 6 introduces the notion that visual processing may occur in two streams of analysis that involve the activity of multiple brain regions, some located within striate cortex and others situated within visual association cortex. The section covers the role of visual association cortex in the analysis of color, form, movement, and location. Sensory receptor - a specialized neuron that detects a particular category of physical events - Stimuli impinge on the receptors and, through various processes, alter their membrane potentials Sensory transduction – the process by which sensory stimuli are transduced into slow, graded receptor potentials Receptor potential – a slow, graded electrical potential produced by a receptor cell in response to a physical stimulus - Most receptors lack axons; a portion of their somatic membrane forms synapses with the dendrites of other neurons Eyes detect light as electromagnetic radiation with a wavelength between 380 and 760 nm - Hue – one of the perceptual dimensions of color; the dominant wavelength; color - Brightness – one of the perceptual dimensions of color; intensity - Saturation – one of the perceptual dimensions of color; purity
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
- If all the radiation if of one wavelength, the perceived color is pure, or fully saturated - If the radiation contains all wavelengths, it produces no sensation of hue – it appears white Vergence movement – the cooperative movement of the eyes, which ensures that the image of an object falls on identical portions of both retinas Saccadic movement
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern