עיבוד אותות במערכת החושים סמסטר א'- תשס"ט

Slides:



Advertisements
Similar presentations
ANATOMY AND PHYSIOLOGY OF THE EAR
Advertisements

Sensory Reception Chapter 31.
Psychoacoustics Riana Walsh Relevant texts Acoustics and Psychoacoustics, D. M. Howard and J. Angus, 2 nd edition, Focal Press 2001.
HEARING Sound How the Ears Work How the Cochlea Works Auditory Pathway
Hearing and Deafness Outer, middle and inner ear.
1. Which color represents the frontal lobe?. 2. Which color represents the occipital lobe?
INTRODUCTION TO HEARING. WHAT IS SOUND? amplitude Intensity measured in decibels.
Hearing and Equilibrium
Auditory Transduction How the ear converts acoustic energy into a neural response.
עבוד אותות במערכת החושים סמסטר א' תשס"ח Lecture 9
Human hearing Limits, the human ear, and issues of perception
Structure and function
עבוד אותות במערכת החושים סמסטר א' תשס"ז Lecture II
עבוד אותות במערכת החושים סמסטר א' תשס"ח הרצאה מס' 5 Neural Activity
THE HUMAN EAR AND SIMPLE TESTS OF HEARING Ear Anatomy  Outer Ear  Auricle, external auditory canal and the tympanic membrane  Middle Ear  An air filled.
The Ear: Hearing and Balance
Emily Maginnis Michelle Amaya Autumn Dahlgren Tiffany Lam Leyli Flores
Chapter 6: The Human Ear and Voice
Sensation and Perception: Hearing
S 319 < Auditory system >
Hearing and Deafness Anatomy & physiology. Protection Impedance match Capture; Amplify mid-freqs Vertical direction coding Frequency analysis Transduction.
KTH ROYAL INSTITUTE OF TECHNOLOGY Sound, the Auditory System, and Pitch Perception Roberto Bresin DT2350 Human Perception for Information Technology Copyright.
SENSE OF HEARING EAR. Ear Consists of 3 parts –External ear Consists of pinna, external auditory meatus, and tympanum Transmits airborne sound waves to.
Hearing Test ng_test/ ng_test/
Figure 13.1 The periodic condensation and rarefaction of air molecules produced by a tuning fork neuro4e-fig jpg.
Chapter Five Sensation. The Basics  Sensation  The mechanical process by which we “take in” physical information from the outside world  Psychophysics.
Hearing Our auditory sense We hear sound WAVES Frequency: the number of complete wavelengths that pass through point at a given time. This determines.
SENSATION AND PERCEPTION. Sensation—the process of detecting a physical stimulus Perception—the process of integrating, organizing and interpreting sensations.
THE BRAIN. HINDBRAIN  MEDULLA controls breathing, heart rate, BP, etc reflex center for vomiting  PONS located just above the medulla controls balance,
ANATOMY AND PHYSIOLOGY OF THE EAR
Nervous System: Part VI Specialized Receptors: Eyes and Ears.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Fundamentals of Anatomy & Physiology SIXTH EDITION Frederic H. Martini PowerPoint.
Anatomy & Physiology The Ear A. Structure of the Ear 1.Outer ear 2.Middle ear 3.Inner ear.
Hearing Physiology.
Human Anatomy & Physiology FIFTH EDITION Elaine N. Marieb PowerPoint ® Lecture Slide Presentation by Vince Austin Copyright © 2003 Pearson Education, Inc.
Fundamentals of Sensation and Perception SOUND AND THE EARS ERIK CHEVRIER OCTOBER 5 TH, 2015.
 The receptors of the ear are the mechanoreceptors.  These receptors respond to physical forces such as gross movements that disturb fluids that are.
Sensation and Perception: Hearing. Sound Sound comes in waves. The waves are produced by vibration. Sound is vibration Ex. Clap your hands causes the.
Intensity of a Spherical Wave
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings H UMAN P HYSIOLOGY Sensory Physiology_hearing.
Hearing Sound and the limits to hearing Structure of the ear: Outer, middle, inner Outer ear and middle ear functions Inner ear: the cochlea - Frequency.
52 The Sense of Hearing Dr. A.R. Jamshidi Fard 2011.
Fundamentals of Sensation and Perception
The Traveling Wave. Reminder 2 Frequency Amplitude Frequency Phase Frequency domain Time domain (time) waveform Amplitude spectrum.
THE EAR is a sensory organ responsible for both hearing and maintenance of balance composed of three sections: the outer, middle and inner ear.
Outline Of Today’s Discussion 1.Auditory Anatomy & Physiology.
Table of Contents Chapter 4 Part 3 Sensation and Perception.
Special Senses Hearing and Equilibrium Hearing: a response to vibrating air molecules Equilibrium: the sense of motion, body orientation, and balance Upload.
Chapter 4 Sensation and Perception. The Ear Audition = hearing Audition = hearing Sounds = mechanical energy typically caused by vibrating objects Sounds.
The Ear Hearing and Balance. The Ear: Hearing and Balance The three parts of the ear are the inner, outer, and middle ear The outer and middle ear are.
Hearing or audition.
The Eye Processing in Brain Color
Peripheral Auditory System
Anatomy.
THE AUDITORY SYSTEM: HEARING
Special Senses Ear.
Hearing, not trying out for a play
The Eye Processing in Brain Color
ANATOMY AND PHYSIOLOGY OF THE EAR (HEARING)
Peripheral Auditory System
The Human Ear.
Tuning in the basilar membrane
The Special Senses: Part D
Human hearing Limits, the human ear, and issues of perception
How We Hear.
The Auditory Sense: Hearing
The Auditory Sense: Hearing
The Special Senses Hearing
ANATOMY AND PHYSIOLOGY OF THE EAR
Special Senses Chapter 8.
Presentation transcript:

עיבוד אותות במערכת החושים סמסטר א'- תשס"ט

עיבוד אותות במערכת החושים מרצה: פרופ' מרים פירסט-יוסט חדר 145, בנין מעבדות חשמל טל' : הרצאה: יום ג' :18: :00, חדר 205 בנין כתות הנדסה הרכב ציון: ממוצע של 4 עבודות בית במהלך הקורס

מודל התחושה גירוי פיזיקאלי אור קול לחץ רכיבים כימיים מתמר עין אוזן עור אף פה מערכת תקשורת מערכת העצבים מעבד מח תחושה

נושאי הלמוד בקורס המתמרים התחושתיים: אוזן ועין מודל מתמטי של פעילות האוזן תחושה: כיצד מודדים? יסודות הפסיכופיזיקה קידוד אינפורמציה תחושתית במערכת העצבים מודלים סטטיסטים של הפעילות העצבית

ספרי לימוד Hartman, W.M. “ Signal s, Sound and Sensation ”, American Institute of Physics Woodbury NY Gelfand, S.A. "Hearing: An introduction to psychophysical and physiological acoustics", Marccel Dekker, Inc. NY, 4rd edition, 2004 Hawkins H.L, McMUllen, T.A., Popper, A.N. and Fay, R.R. “ Auditory Computation ”, Springer, Moore, B.C.J. "An introduction to the pschology of Hearing", Acdemic Press, 3rd edition, Pickles, J.O. "An introduction to the physiolgy of hearing", Acdemic Press 2nd edition, Pirenne, M.H. "Vision and the Eye", Chapman and Hall Ltd, 2nd edition, 1971.

Human Brain Temporal Lobe : Language function; auditory perception; long term memory; emotion Parietal Lobe: Somatosensory perception; integration of visual and somatosensory information Frontal Lobe: Thinking ; Planning; Motor execution Occipital Lobe: Visual perception and processing

HEARING

Sound Levels  Sound level measurements in decibels are generally referenced to a standard intensity Or in terms of sound pressure

Sound Intensity Sound Pressure Level (dB- SPL) The reference Level:

Hearing Threshold

The EAR

External auditory canal מימדים: קוטר: 5-9 מ"מ אורך : מ"מ

F1 = C/ 4L F1 = 343 / (4 x 0.025) = 3.43 KHz

תרומת תעלת השמע היא 12 – 15 dB. זו התוספת קרוב ל – mode הראשון ~3.5 KHz. תוספת זו יורדת ב mode השני ~10KHz.

External Ear Transfer Function

Middle Ear

Middle Ear Movement

Middle Ear Transfer Function

Inner Ear- The Cochlea

The Cochlea

Organ of Corti

Cochlear Movement

שלוש שורות של תאי שערה חיצוניים (OHC) שורה אחת של תאי שערה פנימיים (IHC) הסטראוציליה של ה- OHC יוצרים צורת W בסיס האות W פונה לכיוון תאי השערה הפנימיים. הסטראוציליה של ה- IHC יוצרים שורה רציפה עם גלים בצורת האות U.

Basilar Membrane

Frequency Selectivity

Cochlear Signal Processing Excitation Patterns

Basilar Membrane Properties

Organ of Corti

ככל הנראה רק הסטראוציליה הארוכים של ה- OHC שקועים בתוך ה- TM ל- TM יש חופש תנועה מסוים ללא קשר עם איבר קורטי

Outer Hair Cell Movement

Neural Spikes

Auditory Nerve Response

Auditory Pathway 1. Lateral Sulcus 2. Temporal Lobe 3. Auditory Cortex