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Figure 4.3. Results from a rapid presentation event-related fMRI study of episodic encoding and retrieval (Ranganath et al., 2000). (A) Examples of study and test stimuli and appropriate responses for each test condition. (B) Voxels were characterised according to whether they were activated reliably during encoding trials (blue), retrieval trials (yellow), or both (green). Bilateral regions in anterior and posterior inferior frontal gyri (BA44, BA45, and BA47), and right superior frontal gyrus (BA9) were active during both trial types. (C) The circled region in the left anterior prefrontal cortex was significantly more active during specific test trials than during general test trials. To the right, a bar graph shows response amplitudes within this region in response to old and new objects in each test condition. Activation in the left anterior hippocampus (not shown) exhibited a similar pattern, suggesting that interactions between anterior prefrontal and hippocampal regions were crucial for the monitoring and evaluation of specific memory characteristics in the specific test. Figure adapted from Ranganath, Johnson, & D'Esposito (2000). © Psychology Press 2002.
From:
The Cognitive Neuroscience of Memory
Encoding and Retrieval
- Edited by Amanda Parker, Timothy J. Bussey, Edward L. Wilding
Recent advances in techniques available to memory researchers have led to a rapid expansion in the field of cognitive neuroscience of memory....
Published November 28th 2002 by Psychology Press.
more information about The Cognitive Neuroscience of Memory
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