Bridging the gap between neuroimaging and neuropsychology: using working memory as a case-study

Area of Science:

• Cognitive Neuroscience
• Neuropsychology
• Neuroimaging

Background:

• Neuropsychology and neuroimaging offer insights into brain structure-function relationships.
• Integrating these methods can advance understanding of the neural basis of cognition.
• Challenges exist in harmonizing methodologies and paradigm designs between the two fields.

Purpose of the Study:

• To review neuropsychological and neuroimaging research on working memory.
• To highlight discrepancies and methodological factors in integrating these approaches.
• To encourage cross-methodological evaluation for robust cognitive neuroscience research.

Main Methods:

• Review of existing neuropsychological studies on working memory.
• Review of existing neuroimaging studies on working memory.
• Comparative analysis of findings and methodological assumptions.

Main Results:

• Identified discrepancies in evidence regarding domain-specific rehearsal systems.
• Examined conflicting data on the role of left inferior parietal cortex in phonological storage.
• Discussed differing contributions of Broca's area and cerebellum to articulatory rehearsal.

Conclusions:

• Methodological differences present significant challenges to integrating neuropsychology and neuroimaging.
• Addressing these discrepancies requires careful evaluation of assumptions and study designs.
• Cross-validation of findings between neuropsychology and neuroimaging is essential for advancing cognitive neuroscience.