Reprint of: fMRI studies of successful emotional memory encoding: A quantitative meta-analysis

2011 ◽  
Vol 49 (4) ◽  
pp. 695-705 ◽  
Author(s):  
Vishnu P. Murty ◽  
Maureen Ritchey ◽  
R. Alison Adcock ◽  
Kevin S. LaBar
Keyword(s):  
Meta Analysis ◽  
Emotional Memory ◽  
Memory Encoding

scholarly journals fMRI studies of successful emotional memory encoding: A quantitative meta-analysis

2010 ◽  
Vol 48 (12) ◽  
pp. 3459-3469 ◽  
Author(s):  
Vishnu P. Murty ◽  
Maureen Ritchey ◽  
R. Alison Adcock ◽  
Kevin S. LaBar
Keyword(s):  
Meta Analysis ◽  
Emotional Memory ◽  
Memory Encoding

scholarly journals Aversive memory formation in humans is determined by an amygdala-hippocampus phase code

2021 ◽  
Author(s):  
Manuela Costa ◽  
Diego Lozano-Soldevilla ◽  
Antonio Gil-Nagel ◽  
Rafael Toledano ◽  
Carina Oehrn ◽  
...  
Keyword(s):  
Emotional Memory ◽  
Neuronal Firing ◽  
Gamma Activity ◽  
Memory Encoding ◽  
Aversive Events ◽  
Phase Coordinates ◽  
Time Period ◽  
Phase Code ◽  
Theta Phase ◽  
Intracranial Recordings

AbstractMemory for aversive events is central to survival, but can also become maladaptive in psychiatric disorders. Emotional memory relies on the amygdala and hippocampus, but the neural dynamics of their communication during emotional memory encoding remain unknown. Using simultaneous intracranial recordings from both structures in human patients, we show that in response to emotionally aversive, but not neutral, visual stimuli, the amygdala transmits unidirectional influence on the hippocampus through theta oscillations. Critically, successful emotional memory encoding depends on the precise amygdala theta phase to which hippocampal gamma activity and neuronal firing couple. The phase difference between subsequently remembered vs. not-remembered emotional stimuli translates to ∼25-45 milliseconds, a time period that enables lagged coherence between amygdala and downstream hippocampal gamma activity. These results reveal a mechanism whereby amygdala theta phase coordinates transient coherence between amygdala and hippocampal gamma activity to facilitate the encoding of aversive memories in humans.

scholarly journals Episodic memory-related activation in schizophrenia: meta-analysis

2005 ◽  
Vol 187 (6) ◽  
pp. 500-509 ◽  
Author(s):  
Amélie M. Achim ◽  
Martin Lepage
Keyword(s):  
Episodic Memory ◽  
Temporal Lobe ◽  
Medial Temporal Lobe ◽  
Meta Analysis ◽  
Temporal Cortex ◽  
Neural Correlates ◽  
Brain Regions ◽  
Group Differences ◽  
Memory Encoding ◽  
The Brain

BackgroundNumerous studies have examined the neural correlates of episodic memory deficits in schizophrenia, yielding both consistencies and discrepancies in the reported patterns of results.AimsTo identify in schizophrenia the brain regions in which activity is consistently abnormal across imaging studies of memory.MethodData from 18 studies meeting the inclusion criteria were combined using a recently developed quantitative meta-analytic approach.ResultsRegions of consistent differential activation between groups were observed in the left inferior prefrontal cortex, medial temporal cortex bilaterally, left cerebellum, and in other prefrontal and temporal lobe regions. Subsequent analyses explored memory encoding and retrieval separately and identified between-group differences in specific prefrontal and medial temporal lobe regions.ConclusionsBeneath the apparent heterogeneity of published findings on schizophrenia and memory, a consistent and robust pattern of group differences is observed as a function of memory processes.

scholarly journals Attention and Emotion-Enhanced Memory: A Systematic Review and Meta-Analysis of Behavioural and Neuroimaging Evidence

2018 ◽  
Author(s):  
Zachariah R. Cross ◽  
Amanda Santamaria ◽  
Mark J. Kohler
Keyword(s):  
Eye Tracking ◽  
Meta Analysis ◽  
Emotional Memory ◽  
Long Term Memory ◽  
Emotional Stimuli ◽  
Emotional Information ◽  
Term Memory ◽  
Mixed Support ◽  
Emotional Memory Enhancement

ABSTRACTThe interaction between attention and emotion is posited to influence long-term memory consolidation. We systematically reviewed experiments investigating the influence of attention on emotional memory to determine: (i) the reported effect of attention on memory for emotional stimuli, and (ii) whether there is homogeneity between behavioural and neuroimaging based effects. Over half of the 47 included experiments found a moderate-to-large effect of attention on emotional memory as measured behaviourally. However, eye-tracking research provide mixed support for the role of attention-related processes in facilitating emotional information into long-term memory. Similarly, modulations in sensory-related components at encoding were not predictive of long-term memory formation, whereas later components appear to differentially reflect the allocation of attention to heterogeneous emotional stimuli. This dissociation in neurophysiology is paralleled by the activation of distinct neural networks under full- and divided-attention conditions. We quantified the effects of the behavioural, eye-tracking and neuroimaging findings via meta-analysis to show that the neural substrates of attention-related emotional memory enhancement may be sensitive to specific methodological parameters.

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