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