PSYC 345: Quiz 2-Exam 1
Recordings from single neurons are conducted using which of these pieces of equipment?
Micro-electrode
A specific person's face is represented in the nervous system by the firing of
a group of neurons each responding to a number of different faces.
Action potentials occur in the
axon
Your author points out that studying the mind requires both ________ and ________ experiments.
behavioral; physiological
The study of the physiological basis of cognition is known as
cognitive neuroscience
Direct contact is the fundamental way we experience the world around us. True False
false, not based on direct contact with the world, but, instead, is based on physiological representations constructed by our brain through detection by our 5 senses
Sensory coding is not correct. True False
false, specificity coding
The neuron doctrine is
in disagreement with nerve net theory
The idea of a grandmother cell is consistent with
specificity coding
Which of the following neural components is NOT found at the receiving end of neurons?
Axon
You are walking down the street and see a really nice car drive by. You notice many features of it: its color, movement, shape, location, and so forth. All of these features are processed
In different parts of the brain
Early studies of brain tissue that used staining techniques and microscopes from the 19th century described the "nerve net." These early understandings were in error in the sense that the nerve net was believed to be
Continuous
Cognitive Neuroscience focuses on the study of the mind. True False
false, study of the brain
Neurons that respond to specific qualities (e.g., such as orientation, movement, and length) that make up objects are called
feature detectors
When recording from a single neuron, stimulus intensity is represented in a single neuron by the
firing rate of action potentials
When conducting an experiment on how stimuli are represented by the firing of neurons, you notice that neurons respond differently to different faces. For example, Arthur's face causes three neurons to fire, with neuron 1 responding the most and neuron 3 responding the least. Roger's face causes three different neurons to fire, with neuron 7 responding the least and neuron 9 responding the most. Your results support ____ coding.
sparse or distributer???
A "synapse" is a gap. True False
true
A typical neuron has an "axon hillock." True False
true
Neurons are cells that are the building blocks of the brain. True False
true
Neurotransmitter molecules are stored in the terminal buttons. True False
true
Our concsious experience of the world around us is simply a pretty close "reconstruction" by our brain. True False
true
Reflected light forms an image on the retina True False
true
Sparse coding is the representation of a thing by a pattern of activation of a small number of neurons. True False
true