More Introductory Stuff
... Cells in cortex that respond to different line orientation Truly cool, maybe they network together to recognize objects? ...
... Cells in cortex that respond to different line orientation Truly cool, maybe they network together to recognize objects? ...
Primary visual cortex
... Model of a hypercolumn showing two ocular dominance columns (one for each eye), many orientation columns, and the locations of the CO blobs ...
... Model of a hypercolumn showing two ocular dominance columns (one for each eye), many orientation columns, and the locations of the CO blobs ...
Objectives 31
... diffuse illuminate because there are excitatory and inhibitory regions in receptive fields that cancel each other out; receptive fields are not circular which do not respond well to small spots of light - Cortical cells respond to stripes or edges with a particular orientation; simple cells have exc ...
... diffuse illuminate because there are excitatory and inhibitory regions in receptive fields that cancel each other out; receptive fields are not circular which do not respond well to small spots of light - Cortical cells respond to stripes or edges with a particular orientation; simple cells have exc ...
PPT - UCI Cognitive Science Experiments
... achromatopsia, unlike as in blindness caused by damage to the eyes or optic nerve, even memory of color is gone • Akinetopsia (damage to V5 or MT) • or motion blindness—the loss of the ability to see objects move. Those affected report that they perceive a collection of still images. ...
... achromatopsia, unlike as in blindness caused by damage to the eyes or optic nerve, even memory of color is gone • Akinetopsia (damage to V5 or MT) • or motion blindness—the loss of the ability to see objects move. Those affected report that they perceive a collection of still images. ...
Visual categorization shapes feature selectivity in the primate
... Red circles : Neurons with statistically significant selectivity for diagnostic dimension only Blue circles : Neurons with significant selectivity for diagnostic and non-diagnostic feature Black triangles : Neurons with no significant selectivity Red star : Example neuron depicted in previous figure ...
... Red circles : Neurons with statistically significant selectivity for diagnostic dimension only Blue circles : Neurons with significant selectivity for diagnostic and non-diagnostic feature Black triangles : Neurons with no significant selectivity Red star : Example neuron depicted in previous figure ...
Local Cortical Circuits
... Multi-Unit Analysis Limitations of Our Recordings Technique Analysis of Spike Trains by Renewal Density ...
... Multi-Unit Analysis Limitations of Our Recordings Technique Analysis of Spike Trains by Renewal Density ...
PSY 437 Sensation and Perception Knapp Study Guide 11 Primary
... Today we’ll trace the pathway from the retina to the primary visual cortex. We’ll also see how primary visual cortex is organized and some things it can do.. 1. What sources does each LGN receive information from and why would it be important to receive information from these sources? 2. What type o ...
... Today we’ll trace the pathway from the retina to the primary visual cortex. We’ll also see how primary visual cortex is organized and some things it can do.. 1. What sources does each LGN receive information from and why would it be important to receive information from these sources? 2. What type o ...
Exam 2-SG suggested answers (2010)
... binocular neurons below the level of the cortex, while auditory pathways from from the two ears are extensively crossed, so cells at all levels above the cochlear nuclei are binaural, i.e. they receive inputs from both ears. 4. Photoreceptors that synapse onto ‘off’-center bipolars release depolariz ...
... binocular neurons below the level of the cortex, while auditory pathways from from the two ears are extensively crossed, so cells at all levels above the cochlear nuclei are binaural, i.e. they receive inputs from both ears. 4. Photoreceptors that synapse onto ‘off’-center bipolars release depolariz ...
THE VISUAL SYSTEM: EYE TO CORTEX Outline
... Anticipation of a stimulus increases neural activity in the same circuits affected by the stimulus itself. ...
... Anticipation of a stimulus increases neural activity in the same circuits affected by the stimulus itself. ...
9.01 - Neuroscience & Behavior Fall 2003 Massachusetts Institute of Technology
... 1. Explain the difference between brightness, hue, and saturation. 2. Describe the functions of the rods, the bipolar cells, and the ganglion cells in the retina. What are some similarities and differences of their electrical responses and receptive fields? 3. How does the eye adapt to the range of ...
... 1. Explain the difference between brightness, hue, and saturation. 2. Describe the functions of the rods, the bipolar cells, and the ganglion cells in the retina. What are some similarities and differences of their electrical responses and receptive fields? 3. How does the eye adapt to the range of ...
Cellular Neuroscience
... • The “F0/F1” ratio is often used to distinguish simple (approximately linear) V1 neurons from complex (nonlinear) ones. • Responses are recorded to sinusoidal contrast gratings. If the cell is linear, the output should contain only the input frequency F0. • Fourier analysis is performed on the post ...
... • The “F0/F1” ratio is often used to distinguish simple (approximately linear) V1 neurons from complex (nonlinear) ones. • Responses are recorded to sinusoidal contrast gratings. If the cell is linear, the output should contain only the input frequency F0. • Fourier analysis is performed on the post ...
Slide
... Overview of the visual system as related to visual prostheses. In most retinal dystrophies, the first order photoreceptor neurons (rods and cones) are lost. Thus, second order neurons (bipolar cells) are the earliest viable target, typically for subretinal and suprachoroidal devices. Epiretinal devi ...
... Overview of the visual system as related to visual prostheses. In most retinal dystrophies, the first order photoreceptor neurons (rods and cones) are lost. Thus, second order neurons (bipolar cells) are the earliest viable target, typically for subretinal and suprachoroidal devices. Epiretinal devi ...
Slide ()
... Responses of neurons in the primary visual cortex of a monkey to visual stimuli. (Adapted, with permission, from Hubel and Wiesel 1977.) A. A diagonal bar of light is moved leftward across the visual field, traversing the receptive fields of a binocularly responsive cell in area 17 of visual cortex. ...
... Responses of neurons in the primary visual cortex of a monkey to visual stimuli. (Adapted, with permission, from Hubel and Wiesel 1977.) A. A diagonal bar of light is moved leftward across the visual field, traversing the receptive fields of a binocularly responsive cell in area 17 of visual cortex. ...