Lær fra MIT, Microsoft, Google og Meta. Helt gratis.

Lec 1: Introduction, the visual system

Description: This lecture covers the layout and organization of the course as well as separate introductions to the visual system and the auditory system. Instructor: Peter H Schiller and Chris Brown

Lec 2: Basic layout of the visual system and the retina

Description: This lecture covers the layout of the visual system and the retina as well as photoreceptors. Instructor: Peter H Schiller

Lec 3: The laternal geniculate nucleus and the visual cortex

Description: This lecture covers the lateral geniculate nucleus and the visual cortex, including V1, extrastriate cortex, V2, V4, MT, MST and inferotemporal cortex areas. Instructor: Peter H Schiller

Lec 4: The ON and OFF channels

Description: This lecture covers the ON and OFF channels and demonstrates the effects of a glutamate analog called 2-amino-4-phosphonobutyrate (APB) on the responses of neurons in the visual system. Instructor: Peter H Schiller

Lec 5: The Midget and Parasol systems

Description: This lecture covers the Midget and Parasol channels. It covers how lesions of the parvocellular or magnocellular layers of the LGN affect contrast sensitivity, brightness perception, pattern and texture perception, depth, motion and flicker detection. Instructor: Peter H Schiller

Lec 6: Adaptation and color

Description: This lecture covers color vision and adaptation. The major theories of color vision are discussed along with how color is processed in the retina, LGN and cortex. Also covered in this video are color blindness and adaptation, including after-effects. Instructor: Peter H Schiller

Lec 7: Depth perception

Description: This lecture covers depth perception, including mechanisms used to analyze depth. The video includes discussions of these mechanisms such as the effects of lesions in V4 or MT regions and stereoblindness, motion parallax, shading and perspective and how depth is processed by cortical structures. Instructor: Peter H Schiller

Lec 8: Form perception

Description: This lecture covers form perception, including Gestalt principles of organization and the theories of form perception. Also discussed are the properties of spatial frequency analysis and cortical areas important to intermediate vision, subjective contours, and facial recognition. Instructor: Peter H Schiller

Lec 9: Illusions and visual prosthesis

Description: This lecture covers illusions and theories used to explain them. Also discussed are the basic requirements and current research of visual prosthesics. Instructor: Peter H Schiller

Lec 10: The neural control of visually guided eye movements 1

Description: This lecture introduces visually guided eye movements, including saccadic and smooth pursuit, and how they are controlled by the brain. Instructor: Peter H Schiller

Lec 11: The neural control of visually guided eye movements 2

Description: This lecture covers saccadic eye movements in greater detail, including the role of the superior colliculus, brainstem nuclei and cortical structures involved in saccadic eye movement control. Also discussed are the effects of lesions and pharmacological agents on eye movements. Instructor: Peter H Schiller

Lec 12: Motion perception and pursuit eye movements

Description: This lecture covers how neurons respond to motion and the effects of lesions on motion perception. Other topics also discussed are the ability to determine structure from motion, apparent motion, meta contrast and brightness masking, optokinetic nystagmus, and the accessory optic system. Instructor: Peter H Schiller

Lec 13: Review: The visual and oculomotor systems

Description: This lecture includes a review of the visual and oculomotor systems. Topics reviewed include visual system anatomy, perception of depth, form and motion, and eye movement control. Also covered are illusions and visual prosthetics. Instructor: Peter H Schiller

Lec 14: Sound: External, middle and inner ears

Description: This lecture covers the physical properties and complexity of sound as well as the three parts of the auditory periphery and their functions. Instructor: Chris Brown

Lec 15: Hair cells

Description: This lecture covers cochlear anatomy and vibration patterns. Topics include the inner and outer hair cells, OHC electromotility and otoacoustic emissions. Instructor: Chris Brown

Lec 16: Auditory nerve; psychophysics of frequency resolution

Description: This lecture covers the two types of auditory nerves and frequency discrimination. Topics include tuning and tonotopy, two-tone suppression, psychophysical tuning curves and phase locking. Also discussed is the perception of musical intervals. Instructor: Chris Brown

Lec 17: Cochlear nucleus: Tonotopy, unit types and cell types

Description: This lecture covers the anatomy and physiology of the auditory central nervous system and the cochlear nucleus. Auditory implants are also introduced. Instructor: Chris Brown

Lec 18: Hearing loss; demo by Sheila Xu, cochlear implant user

Description: This lecture covers hearing loss, including conductive and sensori-neural, and causes of hearing loss. This is followed by a discussion of auditory implants with a demonstration by Sheila Xu, a cochlear implant user. Instructor: Chris Brown

Lec 19: Descending systems and reflexes

Description: This lecture covers the auditory brainstem reflexes and descending systems, including the olivocochlear neurons and the middle ear muscles. Instructor: Chris Brown

Lec 20: Sound localization 1: Psychophysics and neural circuits

Description: This lecture covers sound localization using binaural cues, including interaural time or level differences. Also discussed is the neural processing of interaural time differences in the medial superior olive (MSO). Instructor: Chris Brown

Lec 21: Sound localization 2: Superior olivary complex and IC

Description: This lecture continues to focus on sound localization. Topics covered include neural processing of interaural level differences in the lateral superior olive (LSO), projections of the superior olive to the inferior colliculus, room acoustics and the auditory pathways in the barn owl. Instructor: Chris Brown

Lec 22: Auditory cortex 1: Physiology and sound localization

Description: This lecture covers the auditory cortex. Topics include tonotopic mapping and plasticity, role of field A1 in sound localization, and pitch area near field A1. Instructor: Chris Brown

Lec 23: Auditory cortex 2: Language; bats and echolocation

Description: This lecture continues with the auditory cortex, focusing on echolocation by bats as well as speech and language. Topics include types of bat echolocation and bat cortical specializations along with speech spectrograms and cortical processing. Instructor: Chris Brown

MIT 7.013 Introductory Biology, Spring 2011