Chapter 1 Flashcards
(47 cards)
what was The “Perceptron”
computer- to see if the computer could distinguish between specific images (like symbols, shapes, etc)
conscious sensory experience
Experiences that result from stimulation of the senses
Perception
elementary processes that occur at the beginning of a sensory system___
Sensation
Perceptual process
sequence of septs that leads through the external environment to the perception and what we do with it (7steps)
Step 1 in the perceptual process
Distal Stimuli
Distal Stimuli
Environmental stimuli - objects in the environment available to observer
Observer selectively attends to objects
Stimulus impinges on receptors resulting in internal representation
Step 2 in the perceptual process
Proximal Stimuli- proximity to our receptors
Proximal Stimuli
Representation of distal stimulus on sensory receptors- light reflected of the tree (not the tree it self)
Stimulus is “in proximity” to the receptors
Stimuli (and responses created by stimuli) are transformed, or changed, between the distal stimulus and perception- light/sound etc and turn it into action potential (neuro signals)
Principle of Transformation
The transformation of environmental energy (such as light, sound, or thermal energy) to electrical energy is called
Transduction
Perception is based on representations of stimuli formed on the receptors and the resulting activity in the person’s nervous system
Principle of Representation
Step 3 in the perceptual process
Receptor Processes
Sensory receptors
cells specialized to respond to environmental energy(corn in eyes, etc.)- responding to incoming information
Transduction occurs, which changes…..
environmental energy to nerve impulses
Results in electrical representation of the stimulus
Types of sensory receptors
a) cone cell-vision, hair cell-hear, olfactory bulb-smell, etc
Step 4 of perceptual process
Neural processing
Neural processing
they travel through a vast interconnected network of neurons that
(1)transmit signals from the receptors to the brain and then within the brain; and
(2)change (or process) these signals as they are transmitted.
These changes occur because of interactions between neurons as the signals travel from the receptors to the brain.
The electrical signals created through transduction are often sent to a sense’s primary receiving area in the
cerebral cortex of the brain
The cerebral cortex is a 2-mm-thick layer that contains the machinery for
creating perceptions, as well as other functions, such as language, memory, emotions, and thinking
Primary receiving areas in our brain receive the____ input and the more farther away the information travels the more_____ the information gets
receive the raw input(signals go first) and move on from there, the more farther away it gets more intense more broken out
From which sense does the Occipital lobe/primary receiving area receives signals?
Vision
From which sense does the Temporal lobe receives signals?
Primary auditory cortex
Hearing
From which sense does the Parietal lobe receives signals?
Skin, tactile- somatosensory cortex
From which sense does the Frontal lobe receives signals?
frontal lobe- isn’t a primary projection area but integrating area- puts all together- make decisions, detail process
