scholarly journals Dissociating retrieval success from incidental encoding activity during emotional memory retrieval, in the medial temporal lobe

2014 ◽  
Vol 8 ◽  
Author(s):  
Andrea T. Shafer ◽  
Florin Dolcos
Keyword(s):  
Temporal Lobe ◽  
Memory Retrieval ◽  
Medial Temporal Lobe ◽  
Emotional Memory ◽  
Incidental Encoding

Medial temporal lobe activation during autobiographical context memory retrieval of time and place and its dependency upon recency

Neurocase ◽  
2013 ◽  
Vol 21 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Silke Lux ◽  
Valeska N. Bindrich ◽  
Hans J. Markowitsch ◽  
Gereon R. Fink
Keyword(s):  
Temporal Lobe ◽  
Memory Retrieval ◽  
Medial Temporal Lobe ◽  
Context Memory

Medial temporal lobe stimulation may disrupt context-dependent memory retrieval

2015 ◽  
Vol 8 (2) ◽  
pp. 355 ◽  
Author(s):  
M.B. Merkow ◽  
J.F. Burke ◽  
A.R. Ramayya ◽  
A. Sharan ◽  
M.J. Kahana ◽  
...  
Keyword(s):  
Temporal Lobe ◽  
Memory Retrieval ◽  
Medial Temporal Lobe ◽  
Context Dependent

scholarly journals Contributions of the medial temporal lobe to declarative memory retrieval: Manipulating the amount of contextual retrieval

2008 ◽  
Vol 15 (9) ◽  
pp. 611-617 ◽  
Author(s):  
I. Tendolkar ◽  
J. Arnold ◽  
K. M. Petersson ◽  
S. Weis ◽  
A. Brockhaus-Dumke ◽  
...  
Keyword(s):  
Temporal Lobe ◽  
Memory Retrieval ◽  
Medial Temporal Lobe ◽  
Declarative Memory ◽  
Contextual Retrieval

scholarly journals Autobiographical Memory Retrieval and Hippocampal Activation as a Function of Repetition and the Passage of Time

2007 ◽  
Vol 2007 ◽  
pp. 1-14 ◽  
Author(s):  
Lynn Nadel ◽  
Jenna Campbell ◽  
Lee Ryan
Keyword(s):  
Autobiographical Memory ◽  
Temporal Lobe ◽  
Memory Retrieval ◽  
Medial Temporal Lobe ◽  
Perirhinal Cortex ◽  
Brain Regions ◽  
Long Term Memory ◽  
Memory Traces ◽  
Multiple Trace Theory

Multiple trace theory (MTT) predicts that hippocampal memory traces expand and strengthen as a function of repeated memory retrievals. We tested this hypothesis utilizing fMRI, comparing the effect of memory retrieval versus the mere passage of time on hippocampal activation. While undergoing fMRI scanning, participants retrieved remote autobiographical memories that had been previously retrieved either one month earlier, two days earlier, or multiple times during the preceding month. Behavioral analyses revealed that the number and consistency of memory details retrieved increased with multiple retrievals but not with the passage of time. While all three retrieval conditions activated a similar set of brain regions normally associated with autobiographical memory retrieval including medial temporal lobe structures, hippocampal activation did not change as a function of either multiple retrievals or the passage of time. However, activation in other brain regions, including the precuneus, lateral prefrontal cortex, parietal cortex, lateral temporal lobe, and perirhinal cortex increased after multiple retrievals, but was not influenced by the passage of time. These results have important implications for existing theories of long-term memory consolidation.

scholarly journals Working memory retrieval differences between medial temporal lobe epilepsy patients and controls: A three memory layer approach

2014 ◽  
Vol 84 (1) ◽  
pp. 90-96 ◽  
Author(s):  
José María López-Frutos ◽  
Claudia Poch ◽  
Irene García-Morales ◽  
José María Ruiz-Vargas ◽  
Pablo Campo
Keyword(s):  
Working Memory ◽  
Temporal Lobe Epilepsy ◽  
Temporal Lobe ◽  
Memory Retrieval ◽  
Medial Temporal Lobe ◽  
Medial Temporal Lobe Epilepsy

Delayed Verbal Memory Retrieval: A Functional MRI Study in Epileptic Patients with Structural Lesions of the Left Medial Temporal Lobe

NeuroImage ◽  
2001 ◽  
Vol 14 (5) ◽  
pp. 995-1003 ◽  
Author(s):  
Sophie Dupont ◽  
Yves Samson ◽  
Pierre-François Van de Moortele ◽  
Séverine Samson ◽  
Jean-Baptiste Poline ◽  
...  
Keyword(s):  
Functional Mri ◽  
Temporal Lobe ◽  
Verbal Memory ◽  
Memory Retrieval ◽  
Medial Temporal Lobe ◽  
Epileptic Patients ◽  
Mri Study

scholarly journals Stress enhances emotional memory-related theta oscillations in the medial temporal lobe

2021 ◽  
Vol 15 ◽  
pp. 100383
Author(s):  
Hendrik Heinbockel ◽  
Conny W.E.M. Quaedflieg ◽  
Till R. Schneider ◽  
Andreas K. Engel ◽  
Lars Schwabe
Keyword(s):  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
Emotional Memory ◽  
Theta Oscillations

scholarly journals Category-specific item encoding in the medial temporal lobe and beyond: The role of reward

2021 ◽  
Author(s):  
Heidrun Schultz ◽  
Jungsun Yoo ◽  
Dar Meshi ◽  
Hauke R. Heekeren
Keyword(s):  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
Human Life ◽  
Stimulus Category ◽  
Category Specificity ◽  
Temporal Memory ◽  
High Reward ◽  
Encoding Effects ◽  
Incidental Encoding

AbstractForming new memories is a fundamental part of human life, and the medial temporal lobe (MTL) is central to memory formation. Recent research suggests that within MTL, the perirhinal and parahippocampal cortices (PRC, PHC) process object and scene memory, respectively, whereas the hippocampus (HC) is agnostic to stimulus category. It is unclear, however, whether MTL category specificity extends to item encoding. Furthermore, MTL does not act in isolation: Reward-related memories are formed in interplay with the dopaminergic midbrain (substantia nigra/ventral tegmental area, SNVTA) and amygdala (AMY), but it is unclear whether reward modulates neural item encoding in a category-specific way. To address these questions, we had 39 healthy volunteers (27 for all memory-based analyses) undergo functional magnetic resonance imaging while they solved an incidental encoding task, which paired objects or scenes with high or low reward, followed by a next-day surprise recognition test. Behaviourally, high reward preferably enhanced object memory. Importantly, neural activity in PRC and PHC reflected item encoding of objects and scenes, respectively. Moreover, AMY encoding effects were selective for high-reward objects, with a similar pattern in PRC. SNVTA and HC showed no clear evidence of item encoding. The behavioural and neural asymmetry of reward-related encoding effects may be conveyed through an anterior-temporal memory system, including AMY and PRC, potentially in interplay with the ventromedial prefrontal cortex (vmPFC).

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