Chat with AIExam 11: Declarative Longterm Memory
What does voxel-based morphometry (VBM) measure? Why does one need to be cautious about interpreting the results of these studies?
(37) 
Answered by Examlex AI CopilotVoxel-based morphometry (VBM) is a neuroimaging technique that measures differences in brain anatomy and structure. It does this by analyzing differences in the concentration and distribution of gray matter in the brain. VBM is often used to study differences in brain structure between groups of individuals, such as those with a certain disorder compared to healthy controls.
One needs to be cautious about interpreting the results of VBM studies for several reasons. First, VBM studies often involve a large number of statistical comparisons, which can increase the likelihood of false positive results. This means that some of the differences in brain structure that are identified may not actually be meaningful. Additionally, VBM studies often rely on complex image processing techniques, and the results can be influenced by the specific methods and parameters used in the analysis. Finally, VBM studies may not always account for potential confounding factors, such as age, sex, or other demographic variables, which can impact the interpretation of the results.
Overall, while VBM studies can provide valuable insights into differences in brain structure, it is important to interpret the results with caution and consider the limitations of the technique when drawing conclusions.
Which of the following is likely to lead to more hippocampal activity during a brain scan?
(38) 
VerifiedA
Patients with bilateral damage to the hippocampus can be unimpaired in word-stem completion priming tasks:
(33) VerifiedTrue
The study of individual differences allows a researcher to make causal inferences.
(43) Describe the logic of a study using a subsequent memory effect. What have these studies demonstrated that studies using blocked-designs could not?
(26) How has functional connectivity been used to demonstrate the importance of the hippocampus to long-term memory encoding?
(36) How have researchers dissociated encoding-based vs. retrieval-based accounts of memory loss following hippocampal damage?
(36) Recollection and familiarity are associated with which regions of the medial temporal lobe?
(30) Why might taxi drivers have a larger parahippocampal gyrus than bus drivers? How does this relate to visual processing?
(48) What is the difference between recollection and familiarity and dual-process models?
(34) What is the principle of contextual reinstatement? How has MVPA been used to demonstrate this principle?
(32) According to the dual-process model, the curvature of an ROC corresponds to _____ and the intercept to _____.
(33) According to dual-process models, the curvilinearity of the ROC curve is associated with _____ and the intercept on the y-axis with _____.
(37) According to Tulving's distinctions between different types of memory retrieval, which of the following would be defined as declarative memory? (Check all that apply.)
(32) Patients with bilateral damage to the hippocampus can be unimpaired in word-stem cued-recall tasks.
(36) Match the description with the fMRI analysis technique.
Description fMRI analysis technique Measuring differences in grey matter mass univariate approach Measuring correlations in brain activity voxel-based morphometry Comparing signal intensity of response in an ROI to different stimuli multi-voxel pattern analysis Decoding mental representation from neural activity functional connectivity
(31) The retrieval of qualitative information associated with a learning episode is referred to as:
(28) 
Filters
- Essay(0)
- Multiple Choice(0)
- Short Answer(0)
- True False(0)
- Matching(0)