'Lateral inhibition' presentation slideshows

Chapter 6 Vision

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SENSORY NERVOUS SYSTEM

SENSORY NERVOUS SYSTEM . Dr. Ayisha Qureshi Assistant Professor MBBS, Mphil. Stimulus & Modalities. A stimulus is a change detectable by the body. Stimuli exist in a variety of energy forms, or modalities, such as heat, light, sound, pressure, and chemical changes .

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Language and Perception

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20 Minute Quiz

20 Minute Quiz. For each of the two questions, you can use text, diagrams, bullet points, etc. What are the main events in neural firing and transmission? Describe the main events in neural development. . How does activity lead to structural change?.

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Audio, Radio, Acoustics, Signal Processing?

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Psychology 4051

Psychology 4051. Spatial Vision. Spatial Vision. The ability to detect objects and patterns and distinguish them from a background. Arguably, the most important single aspect of vision. Assessed using tests of visual acuity and contrast sensitivity. Visual Acuity.

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The Olfactory System

The Olfactory System. Olfactory System Chemical sensing system with receptor organs in the nasal passages Receptors synapse directly into the brain; heavy connections with the limbic system Different from other sensory systems in many ways. Olfactory System: Peripheral Structure

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Chapter 4. Neural Networks Based on Competition

C_ 1 x_ 1 C_m x_n INPUT CLASSIFICATION Chapter 4. Neural Networks Based on Competition To classify an input pattern into one of the m classes idea case: one class node has output 1, all other 0 ; often more than one class nodes have non-zero output Competition is important for NN

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Retinal Projections

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Hearing

Hearing. middle ear. inner ear. outer ear. hammer. eardrum. anvil. stirrup. oval window. tectorial membrane. hairs. basilar membrane. round window. middle ear. outer ear. inner ear. eardrum. Outer ear: Mechanical protection of the middle ear

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Human Vision

Human Vision. Nov 15.2012 Wu Pei. The eye. Optical system. Cone and Rod Vision:. In a sense, each of us has two visual systems; the photopic system functions in lighted conditions; the scoptopic system functions in dim light

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Visual Cognition I basic processes

Visual Cognition I basic processes. What is perception good for?. We often receive incomplete information through our senses. Information can be highly ambiguous

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Brain Mechanisms of Unconscious Inference

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Modeling the Aux/IAA Pathway

Modeling the Aux/IAA Pathway . Presentation by Labeed Ben-Ghaly. Overview: . Motivation Background The Project Future Work. Motivation. To provide provide a quantitative and cellular description of plant development . Confocal microscope, Zeiss LSM-510.

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Robust Speech recognition

Robust Speech recognition. V. Barreaud LORIA. Mismatch Between Training and Testing. mismatch influences scores causes of mismatch Speech Variation Inter-Speaker Variation. Robust Approaches. three categories noise resistant features (Speech var.)

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Conflict resolution

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Neural Circuits

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Cortical vs. subcortical loops

Cortical vs. subcortical loops. Lateral inhibition in striatum. Switching from one action to another. Direct and indirect pathways. Hyperdirect pathway. Lesions that cause hemiballism. Direct pathway. Indirect pathways. Loops through the basal ganglia.

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Lateral Inhibition and Receptive Fields

Lateral Inhibition and Receptive Fields. Lateral Inhibition: Light on one regions of retinal inhibits ability or adjacent regions to respond to light First studied by Hartline in Limulus Eye This is a compound eye Each bar represents one ommatidium or eyelet. 1 10 units of light.

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The role of the Notch signaling p athway in neurotransmitter p henotype s pecification in Xenopus laevis

The role of the Notch signaling p athway in neurotransmitter p henotype s pecification in Xenopus laevis. Molly J. McDonough and Margaret S. Saha. Department of Biology, College of William and Mary, Williamsburg, VA. 3. Results.

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