Cognitive Psychology- Perception 0.0 / 5 ? PsychologyPerception YR2UniversityAll boards Created by: danholl123Created on: 31-12-17 15:01 What type of process is perception? Active 1 of 47 Perception is the... Psychological process of how we gain information from the environment 2 of 47 What is psychophysics the study of? Stimuli in the environment and sensory experiences 3 of 47 What are the types of psychophysical experiments? Detection and Discrimination 4 of 47 What are the 3 methods used in psychophysics? Method of limits, method of adjustment, and method of constant stimuli 5 of 47 What do neuropsychological approaches study? They record single cell activity 6 of 47 How do neuropsychological experiments work? Placing a microelectrode by the axon of a cell and amplyfying the responses 7 of 47 What do we create from the neuropsychological experiments? Peri-stimulus time histograms 8 of 47 How are images represented on the retina? Upside down, back to front 9 of 47 How can objects vary? In wavelength and variance 10 of 47 Sinusodial gratings are what? 1D patterns where luminance varies across according to wavelength 11 of 47 What is fourier synthesis? Process of building up sinusoidal gratings 12 of 47 What is fourier analysis Process of breaking down sinusodial gratings 13 of 47 What can we gain from measuring responses to sinusodial gratings? We can predict how the visual system will respond to more complex images 14 of 47 We are less sensitive to what contrast and frequency? Low contrast and High frequency 15 of 47 What 4 properties can gratings vary in? Orientation, contrast, phase, and frequency 16 of 47 Why are we less sensitive to high frequency? Images created are blurred on the retina 17 of 47 Why are we less sensitive to low frequency? The receptive fields of the cells overlap 18 of 47 What does reduced luminance do to the sensitivity? Decreases it, due to using rods and not cones 19 of 47 What does motion do to sensitivity? Increases it 20 of 47 What is the snellen eye chart? Naming Letters 21 of 47 What is the Landholt rings? Naming direction the hole in a ring is 22 of 47 What is the parallel bars test? Naming the orientation of the bars 23 of 47 What model did Campbell and Robson create? Multiple filters model 24 of 47 What does the multiple filters model suggest There are many independent models with each one being sensitive to narrow range of frequencies 25 of 47 Blackmore and Campbell found what? Adaptation was selective, supporting the multiple filters model 26 of 47 What is the category of waves that the eye can see called? The visual spectrum 27 of 47 Light can be... (6 things) Absorbed, reflected, refracted, diffracted, scattered, and transmitted 28 of 47 Light that travels through the nodal point changes direction, true or false False 29 of 47 Which photoreceptor is concentrated in the fovea, sensitive to high light, and colour sensitive? Cones 30 of 47 Which photorecptor is dense in the optic nerve head, sensitive to low light, and cannot detect colour? Rods 31 of 47 Which photoreceptor do we have the most off? Rods 32 of 47 Duplex theory of processing explains why we have what? Both rods and cones 33 of 47 Bipolar cells connect to what and transmit information to what?Q Connect to photoreceptors and transmit information to ganglion cells 34 of 47 What are the three types of ganglion cells? Rods, Flat, and Midget 35 of 47 Rod ganglion cells... Connect between 1-4 other cells 36 of 47 Flat ganglion cells... Connect the cones to the ganglion cells 37 of 47 Midget ganglion cells... Only found in fovea, connects 1 cone to 1 ganglion cell 38 of 47 Horizontal ganglion cells connect to 1 photoreceptor, true or false False 39 of 47 Amacrine cells transmit information from only 1 ganglion cell, true or false? True 40 of 47 Which part of the retina is the most refractive? cORENA 41 of 47 The iris regulates what? How much light enters the eye 42 of 47 What are the 5 main neurons in the retina? Photoreceptors, Amacrine cells, Horizontal cells, Ganglion cells, Bipolar cells 43 of 47 Ganglion cells have what arrangement to help us see the edges of objects? Centre-surround antagonism receptive fields 44 of 47 Magnocelluar cells have Large receptive fields, work in low contrast 45 of 47 Parovcelluar cells have Small fields, high contrast 46 of 47 Koniocelluar cells have Medium receptive fields, colour sensitive 47 of 47
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