Exam 3: Methods of Cognitive Neuroscience

Neural network models often

For a researcher to provide evidence that a brain area and cognitive function are associated, they could use a _____________ dissociation, however, to provide more substantial evidence about the function and function localization, they would need a ______________ dissociation.

One limitation of what we can learn through the single-cell recording technique is that

The greatest advantage of incorporating computer modeling into the study of a cognitive phenomenon is that

Transcranial direct current stimulation (tDCS) affects brain function by

What part of the brain does an angiogram allow you to visualize?

The particular region of space in which a stimulus must be presented to evoke a response from a given neuron is its

Diffusion tensor imaging (DTI)

Which neuroimaging technique involves injecting an isotope of oxygen into the bloodstream and using it to measure regional cerebral blood flow?

What is a mental representation? How are mental representations transformed? Give an example to support each of your two answers.

The small regions in a three-dimensional grid, approximately 5 to 10 cubic millimeters in volume, that neuroimagers use to map the brain are known as

Choose two of the following methods and briefly describe how they work. For each of your choices, describe a research question (real or hypothetical) for which this method would be an appropriate choice, and explain why. • functional magnetic resonance imaging (fMRI) • transcranial magnetic stimulation (TMS) • electroencephalography (EEG) • computerized tomography (CT) • diffusion tensor imaging (DTI)

When performing a single-cell recording, researchers typically carefully insert a thin electrode through the cell membrane into the interior of a neuron.

Posner and his colleagues had participants view two letters and respond according to whether these letters were both vowels, both consonants, or one of each. Participants were fastest when viewing two physically identical letters, somewhat slower when viewing the same letter in two different fonts, and slowest when two different consonants were presented. This finding shows that

Which of the following best describes the major limitation of MEG (magnetoencephalography)?

One of the experimental strengths of brain-lesion methods in animals, compared to human neuropsychology, is that

Which of the following can be done by combining functional magnetic resonance imaging (fMRI) and transcranial magnetic stimulation (TMS) and cannot be done by using only one of these methodologies?

This neuroimaging technique combines X-ray pictures taken from many different angles into a compressed two-dimensional representation of the brain.

The field of ________ is based on the idea that perception and thought employ mental representations that undergo transformations as they are used.

Compare and contrast electroencephalogram (EEG) and magnetoencephalography (MEG). Highlight their similarities and differences in your answer.