Sensory and Perception Flashcards
1
Q
Neurons
A
- recieve and transmit info
- electromagnetic activity
2
Q
How are stimuli from environment represented via neuronal activity in the nervous system?
A
- vision-occipital lobe
- Hubel and Wiesel
3
Q
Specificity Coding
A
- a person’s face is represented by one neuron, which fires to that face ONLY
4
Q
Distributed Coding
A
- a person’s face is represented by a group of neurons
5
Q
Frontal Lobe
A
- higher level functioning
- planning
- speech
6
Q
Temporal
A
- language comprehension
- memory recognition
- object recognition
7
Q
Parietal
A
- attention
- spatial processing
8
Q
Stripe-rearing kittens experiment
A
- born and put into 2 different groups (experimental vs control)
- experimental condition is room with vertical stripes only
- control is normal environment
- in test phase, control kittens react to all angled stripes
- experimental react on mostly only vertical stripes
- EXPERIENCE IS CRITICAL TO DEVELOPMENT
9
Q
Experience-dependence plasticity in humans
A
- fusiform face area (temporal)
- Ps shown greebles and were ttrained in greeble recognition
- then performed name verification task while activity in FFA was measured and compared before and after training
- before= more activation for faces
- after= similar activation for both
- YES we can alter the response of neurons in FFA
10
Q
Pupil
A
controls amount of light that enters our eyes
11
Q
Name some primary receptor cells
A
- ganglion cells, bipolar cells, rods, cones
12
Q
Rods
A
- responsible for peripheral vision
- 130 million
- black and white vision
- outside of fovea
- sesitive to all wavelengths
13
Q
Cones
A
- foveal vision
- 7 million
- in center of retina
- color vision
- visual acuity
14
Q
Bipolar cells
A
- relay stations
- communicate message from cones and rods to ganglion cells
15
Q
Ganglion cells
A
- transmit info from bipolar cells to rest of brain
- via optic nerve
- 800,000 in each eye
