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9 paź 2017 · This document provides an overview of visual field testing and interpretation. It begins with definitions of key visual field terminology. It then discusses the normal limits of the visual field and provides a brief history of visual field testing.
- Visual field
Visual field examinations assess central and peripheral...
- Visual field
6 lut 2014 · Visual field examinations assess central and peripheral vision using techniques like confrontation testing, Amsler grids, and perimetry. Common visual field defects include scotomas and hemianopias, which can be caused by conditions like glaucoma and optic neuropathies. Read less
23 paź 2014 · From Single Neurons to Perception • Visual perception • Identifying & assigning meaning to objects • Hierarchy of complex receptive fields • Retinal ganglion cells: Center-surround structure, Sensitive to contrast, and wavelength of light • Striate cortex: Orientation selectivity, direction selectivity, and binocularity ...
1 sie 2014 · Ted talk: beau lotto: optical illusions 2009 Chapter 3: Visual Perception. Some Questions of Interest • What is sensation vs. perception? • What are two fundamental approaches to explaining perception? • What happens when people with normal visual sensations cannot perceive visual stimuli?
19 sty 2015 · Sensation refers to the basic sensory experiences resulting from stimulation of the senses by the environment. It involves the detection of external or internal stimuli and the transmission of sensory signals to the brain. Perception is the interpretation and organization of sensory information.
Could reach for things in left visual field Could differentiate vertical line from horizontal or diagonal line Could differentiate letters “X” and “O” Dorsal stream Where Reach accurately for object Ventral stream What Describe the object Alternative explanation Dorsal stream Where Control of behavior Ventral stream What Conscious ...
Sensation: Transduction of physical stimuli into neural signal. Seeing, hearing, smelling, etc. Perception: Translation of neural signal into “meaning”. Recognition, parsing the world, identification.
