Sensation and Perception - eye.ppt © 2001 Dr. Laura Snodgrass, Ph.D.1 Eye Cornea - 2/3 focus power Iris and pupil - trade off between “depth-of-field”

Slides:

Advertisements

Similar presentations

Biology Specification 13.6 – Nervous coordination The mammalian eye Rods and Cones The nerve impulse Synapses and synaptic transmission Drugs.

Advertisements

Light Notes 3 THE EYE.

Chapter 6 Vision. Sensation and Perception: Important Vocabulary Terms Sensation is the process of receiving, transducing, and coding stimulus energy.

Chapter 2: The Beginnings of Perception. Figure 2-1 p22.

Human Eye  A human eyeball is like a simple camera! Sclera: outer walls, hard, like a light-tight box. Cornea and crystalline lens (eyelens): the two.

Ranya Marrakchi Kelsey Wright Taylor Pakulla

Imaging Science FundamentalsChester F. Carlson Center for Imaging Science The Human Visual System The Eye.

Eyes & Vision. Outermost layer of the Eye Cornea – ‘window’ – bulges slightly outward, allows light to enter – only truly transparent portion. Absence.

Imaging Science FundamentalsChester F. Carlson Center for Imaging Science The Human Eye and Vision 1 (Producing The Image)

Vision is more than what we see.. Karl Lashley American Psychologist Memory storage Migraine Headaches.

The Human Visual System The Eye. Anatomy of the Human Eye Cornea Pupil Iris Sclera Retina Optic Nerve Lens.

Anatomy of the eye.. The Eye: The eyes are the organs of the special sense of sight. They sit in the orbit of the skull which provides them with positional.

The Eye: Structure & Function

Sensory System. 1B3 Sensory System OB30locate the main parts of the eye on a model or diagram and describe the function of the cornea, iris, lens, pupil,

The cow eye Aqueous humor – clear fluid helps the cornea keep its rounded shape. – yellow on pict Optic disk – the place where all nerves from the retina.

Sensation Chapter 5 Myers AP Psychology. Transduction  Conversion of one form of energy into another.  In sensation, the transforming of stimulus energies,

18.4 Seeing Light Pg

DO NOW: What do you know about our sense of sight and vision? What parts of the eye do you know? What do you know about light?

Human Biology Sylvia S. Mader Michael Windelspecht

The Eye. Cross-section of an eye muscle optic nerve aqueous humour lens pupil iris cornea ciliary muscle vitreous humour blind spot retina sclera.

Learning Objectives Can you label a diagram of the eye and explain the function of each part? How does the eye focus on near and distant objects, and respond.

1 Perception, Illusion and VR HNRS , Spring 2008 Lecture 3 The Eye.

The Eye. Energy v. Chemical senses Energy SensesChemical Senses.

Vision Structure of the Eye We only use light energy to see.

Sight Visual Accessory Organs eyelids lacrimal apparatus extrinsic eye muscles.

Chapter 9 - The eye $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Eye Anatomy Eye Physiology More Parts of the Eye Eye Problems More Vocab.

The Senses & Vision p What are the five senses? 1.Vision 2.Hearing 3.Smell 4.Taste 5.Touch.

EYE The eye is an extension of the brain. Eye brain proxomity Can you see : the optic nerve bundle? Spinal cord?

Spook Fish. Eyes How We See Eye Anatomy Nocturnal Eye.

 The lens of the eye is a transparent object behind the iris that changes shape to help adjust the eye's focus to see near or distant objects.

Psychology 210 Lecture 4 Kevin R Smith. Vision Sensory System –The eye –Exactly what we sense from our environment Perceptual System –The brain –How we.

The EYE. Layers of the Eye Sclera Choroid layer Retina.

Vision The Eye Contains photoreceptors Contains accessory organs including eyelids, lacrimal apparatus, and muscles.

Dr. Raj Patel OD - Vancouver Vision Clinic

1 Perception and VR MONT 104S, Fall 2008 Lecture 2 The Eye.

EYE The eye is an extension of the brain Visit For 100’s of free powerpoints.

© Richard Goldman October 9, 2006

Structure of the Eye.

Section 12.1 (Part 1) The Human Eye.

Structure of Human Eye: –Eye Muscles, Optic nerve, sclerotic coat –Cornea, iris, pupil,, lens, retina, blind spot –aqueous humour, vitreous humour, ciliary.

Name them!! There are 5! Hearing Sight Touch Taste Smell.

External Anatomy of the Eye

Biology 12 Nervous System THE HUMAN EYE. EYE The eye is an extension of the brain. It helps us take in light information from our surroundings.

Label the Eye – use book pg. 618 Structure & Function: use book pgs Cornea: clear tissue that covers front of eye. Pupil: opening through.

Seeing Light Chapter 2 Section 4. Vocabulary Cornea – the clear tissue that covers the front of the eye Cornea – the clear tissue that covers the front.

Bio 449Lecture 12 - Sensory Physiology IVSep. 22, 2010 Vision - the eye Gross structure and function Focusing mechanism Photoreceptors Structure Transduction.

Unit 4: Sensation & Perception

Sensation. The process by which our sensory systems (eyes, ears, and other sensory organs) and nervous system receive stimuli from the environment A person’s.

Cornea - The corneas main function is changing the image from the outside world into one that is upside down. Since it needs to be clear the cornea has.

Corrections. Eye worksheet 1. Choroid 2. Light-sensitive nerve cells, rods and cones or photoreceptors 3. Iris – pupil reflex 4. Sclera 5. A hole – allows.

Vision AP Psych Transduction – converting one form of energy into another In sensation, transforming stimulus energies such as sights, sounds,

Special Senses Chapter 8.

rhodopsin  retinal + opsin

Sensation and Perception

Unit A: Nervous and Endocrine Systems

Vision Seeing is Believing.

Anthony’s Textbook of Anatomy & Physiology: Chapter 15

VISION Module 18.

Refraction of Light When light rays enter a medium at an angle, the change in speed causes the rays to bend, or change direction Some mediums cause light.

Sight Visual Accessory Organs eyelids lacrimal apparatus

Human Eye Structure of Human Eye: Focusing Eye defects

The Eye Part 1: Structure and Function.

2. Cornea is Tough, clear covering over the iris and pupil that helps protect the eye. Light bend as it passes through the cornea. This is the first.

Nervous System III Anatomy and Physiology

Presentation transcript:

Sensation and Perception - eye.ppt © 2001 Dr. Laura Snodgrass, Ph.D.1 Eye Cornea - 2/3 focus power Iris and pupil - trade off between “depth-of-field” and light Lens - works with ciliary muscles and zonular fibers to do accommodation Sclera - outer coating Retina - 5 layers of cells Fovea - where you are looking Blind spot - where optic nerve leaves the eye

Sensation and Perception - eye.ppt © 2001 Dr. Laura Snodgrass, Ph.D.2 Focusing The Image Visual angle –the same size object will produce different images sizes depending on its distance. Closer objects produce larger retinal images.

Sensation and Perception - eye.ppt © 2001 Dr. Laura Snodgrass, Ph.D.3 Focusing the image The cornea and lens bend the light rays so the image on the retina is upside-down and left-right reversed The lens works with the ciliary muscles and zonular fibers to accommodate (focus) for different distances

Sensation and Perception - eye.ppt © 2001 Dr. Laura Snodgrass, Ph.D.4 Accommodation Far object –need a flat lens - relax ciliary muscle to pull zonular fibers tight across lens Near object –need a plump lens - constrict ciliary muscles to loosen zonular fibers so lens can plump out

Sensation and Perception - eye.ppt © 2001 Dr. Laura Snodgrass, Ph.D.5 Five Layers Of Cells In The Retina Receptors - rods and cones Horizontal and Amacrine cells - lateral inhibition Bipolar and Ganglion cells - afferent = sending signal towards brain Optic nerve = axons of the ganglion cells