Lateral Inhibition: Inhibition of neural activity for points near the part of the retina that is
stimulated by light.
-Photoreceptors of horizontal cells for humans.
Basic Auditory Functions
Pitch Perception & Related Phenomena
Pitch- Psychological reaction that corresponds to the frequency of a tone.
Place theory- Theory of auditory processing that proposes that frequency info is encoded
at different places along the
Distance and Size Perception
Distance perception- your ability to perceive the distance relationships within the visual
Depth perception- perception of objects as three-dimensioned, having depth in addition to
height & width.
Perceiving and Recognizing Objects
1. A series of extrastriate visual areas continue the work of visual processing.
Emerging from V1 (primary visual cortex) are 2 broad streams of processing: one
going into the temporal lobe and the other into the
Perception of Color
1. Probably the most important fact to know about color vision is that lights and
surfaces look colored because a particular distribution of wavelengths of light is
being analyzed by a particular visual system. Color is a menta
If a tree falls in the forest and no one is around, it does NOT make a sound because sound
is produced by brain processes
Sound waves are created from objects vibrate
Cause objects surrounding medium to vibrate as well, causing pressure changes in
Visual Perception of Real Movement
Optic flow field- the complex pattern on our retinas where peripheral objects move more
rapidly than central objects. The opic flow field is important for motion perception.
Looming- A cue to time-to-contact.
1. Reconstructing a 3-dimensional world from 2, non-Euclidean, curved, 2dimensional retinal images is 1 basic problem faced by the brain
2. A number of monocular cues provide information about 3-dimensional space.
These include oc
About 5000 languages today using ~850 speech sounds
Within these speech sounds, there are many different inflections but we can still
understand what is being said despite the variability
Vocal tract airway above the larynx used for prod
Connection of Sensation and Perception
Sensation & Perception - When we smell a fragrant flower, are we experiencing a
sensation or a perception? In everyday language, the terms "sensation" and "perception'
are often used interchangeably.
However, as you