Activation and Deactivation of Anterior Medial Prefrontal Cortex during Task Preparation and Execution
Author Information
Author(s): Koshino Hideya, Minamoto Takehiro, Ikeda Takashi, Osaka Mariko, Otsuka Yuki, Osaka Naoyuki
Primary Institution: California State University, San Bernardino
Hypothesis
The anterior medial prefrontal cortex (MPFC) is affected by dynamic allocation of attentional resources depending on task demands.
Conclusion
The anterior MPFC is involved in task set formation but shows deactivation during task execution.
Supporting Evidence
- The anterior MPFC showed activation during task preparation.
- The anterior MPFC exhibited deactivation during task execution.
- Behavioral data indicated a mean face recognition accuracy of 78.0%.
- Functional MRI data showed greater activation in the anterior MPFC for the Face memory condition during preparation.
Takeaway
When you get ready to do a task, a part of your brain lights up, but when you actually do the task, that part goes quiet because other parts of your brain are working harder.
Methodology
Participants underwent fMRI while performing a face working memory task with conditions for remembering or ignoring faces.
Limitations
The study involved a small sample size of students, which may limit the generalizability of the findings.
Participant Demographics
16 students, aged 20 to 31 years, 8 females, all right-handed.
Statistical Information
P-Value
0.487
Confidence Interval
99%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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