Cooper, R.A. & Ritchey, M. (pre-print). Progression from feature-specific brain activity to hippocampal spatial binding during episodic encoding. bioRxiv, https://doi.org/10.1101/735761.
Samide, R., Cooper, R.A. & Ritchey, M. (pre-print). A database of news videos for investigating the dynamics of emotion and memory. PsyArXiv, https://doi.org/10.31234/osf.io/2vm8s.
Cooper, R.A. & Ritchey, M. (2019). Cortico-hippocampal network connections support the multidimensional quality of episodic memory. eLife, 8:e45591.
Cooper, R.A., Kensinger, E.A., & Ritchey, M. (2019). Memories fade: The relationship between memory vividness and remembered visual salience. Psychological Science, 30(5), 657-668.
Shields, G.S., McCullough, A.M., Ritchey, M., Ranganath, C., & Yonelinas, A.P. (2019). Stress and the medial temporal lobe at rest: Functional connectivity is associated with both memory and cortisol. Psychoneuroendocrinology, 106, 138-146.
Ritchey, M., Wang, S.-F., Yonelinas, A.P., & Ranganath, C. (2019). Dissociable medial temporal pathways for encoding emotional item and context information. Neuropsychologia, 124, 66-78.
Jonker, T.R., Dimsdale-Zucker, H.R., Ritchey, M., Clarke, A., & Ranganath, C. (2018). Neural reactivation in parietal cortex enhances memory for episodically linked information. Proceedings of the National Academy of Sciences, 115 (43), 11084-11089.
Rogers-Carter, M.M., Varela, J., Gribbons, K.B., Pierce, A.F., McGoey, M.T., Ritchey, M., & Christianson, J.P. (2018). Insular cortex mediates approach and avoidance responses to social affective stimuli. Nature Neuroscience, 21(3), 404-414.
Dimsdale-Zucker, H.R., Ritchey, M., Ekstrom, A.D., Yonelinas, A.P., & Ranganath, C. (2018). CA1 and CA3 differentially support spontaneous retrieval of episodic contexts within human hippocampal subfields. Nature Communications, 9, 294.
Ritchey, M., McCullough, A.M., Ranganath, C., & Yonelinas, A.P. (2017). Stress as a mnemonic filter: Interactions between medial temporal lobe encoding processes and post-encoding stress. Hippocampus, 27 (1), 77-88.
Ritchey, M., Murty, V.P., & Dunsmoor, J.E. (2016). Adaptive memory systems for remembering the salient and the seemingly mundane. Behavioral and Brain Sciences, 39, e221.
Gruber, M.J., Ritchey, M., Wang, S.-F., Doss, M.K., & Ranganath, C. (2016). Post-learning hippocampal dynamics promote preferential retention of rewarding events. Neuron, 89 (5), 1110-20.
Wang, S.-F., Ritchey, M., Libby, L.A., & Ranganath, C. (2016). Functional connectivity based parcellation of the human medial temporal lobe. Neurobiology of Learning and Memory, 134A, 123-134.
Ritchey, M., Libby, L.A., & Ranganath, C. (2015). Cortico-hippocampal systems involved in memory and cognition: The PMAT framework. In Shane O’Mara & Marian Tsanov (Ed.), The Connected Hippocampus. Progress in Brain Research, Elsevier.
Yonelinas, A.P., & Ritchey, M. (2015). The slow forgetting of emotional episodic memories: An emotional binding account. Trends in Cognitive Sciences, 19(5), 259-267.
McCullough, A.M. Ritchey, M., Ranganath, C., & Yonelinas, A.P. (2015). Differential effects of stress-induced cortisol responses on recollection and familiarity based recognition memory. Neurobiology of Learning and Memory, 123, 1-10.
Ritchey, M., Montchal, M.E., Yonelinas, A.P., & Ranganath, C. (2015). Delay-dependent contributions of medial temporal lobe regions to episodic memory retrieval. eLife, 4:e05025.
Wing, E.A., Ritchey, M., & Cabeza, R. (2015). Reinstatement of individual past events revealed by the similarity of distributed activation patterns during encoding and retrieval. Journal of Cognitive Neuroscience, 27(4), 679-691.
Dew, I.T.Z., Ritchey, M., LaBar, K.S., & Cabeza, R. (2014). Prior perceptual processing enhances the effect of emotional arousal on the neural correlates of memory retrieval. Neurobiology of Learning and Memory, 112, 104-113.
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Ritchey, M., Yonelinas, A.P., & Ranganath, C. (2014). Functional connectivity relationships predict similarities in task activation and pattern information during associative memory encoding. Journal of Cognitive Neuroscience, 26 (5), 1085-1099.
Ritchey, M., Wing, E.A., LaBar, K.S., & Cabeza, R. (2013). Neural similarity between encoding and retrieval is related to memory via hippocampal interactions. Cerebral Cortex, 23(12), 2818-2828.
Ranganath, C. & Ritchey, M. (2012). Two cortical systems for memory-guided behavior. Nature Reviews Neuroscience, 13, 713-726.
Ritchey, M., LaBar, K.S., & Cabeza, R. (2011). Level of processing modulates the neural correlates of emotional memory formation. Journal of Cognitive Neuroscience. 23 (4), 757-771.
Ritchey, M., Bessette-Symons, B., Hayes, S.M., & Cabeza R. (2011). Emotion processing in the aging brain is modulated by elaboration. Neuropsychologia, 49 (4), 640-650.
Ritchey, M.*, Dolcos, F.*, Eddington, K.M.*, Strauman, T., & Cabeza R. (2011). Neural correlates of emotional processing in depression: Changes with cognitive behavioral therapy and predictors of treatment response. Journal of Psychiatric Research, 45 (5), 577-587. *denotes equal contributions
Rosie Samide presented preliminary results from our lab's first fMRI study, focused on medial temporal lobe contributions to retrieving emotional associations when the encoding context is reinstated or shifted.
Neural dynamics of context-guided retrieval - SFN 2017
Max Bluestone presented preliminary results from our lab's first EEG study, focused on the neural processes involved in using contextual cues to guide associative retrieval and how these processes are modulated by motivation.
Coming soon to SFN
Lab retreat 2017
Stress affects recent memories by acting as a mnemonic filter
How do stressful experiences influence memories for recent events? Using fMRI, we showed that stress selectively protects memories that had been "tagged" by hippocampal and amygdala activity during learning, acting as a mnemonic filter.
New paper on post-encoding stress
Fall apple picking
Summer status update
MTL parcellation paper in press
Welcome to our new website
A new model for understanding what makes emotional memories stick
Why do emotional memories stick with us for so long? We argue that emotional memories include item-emotion bindings supported by the amygdala that last longer than item-context bindings supported by the hippocampus.
Multi-voxel evidence for context memory over time
What happens to memories & their neural substrates over time? By studying multi-voxel patterns in the hippocampus, we showed that, as long as the memories retain context information, the hippocampus is still involved in their representation.
Identifying memory systems in action & at rest
How can we best understand the neural organization of memory? By using a combination of resting-state functional connectivity and task fMRI techniques, we showed that there are two memory networks that affiliate during rest and play similar roles in memory encoding.