Projection from the basolateral amygdala to the anterior cingulate cortex facilitates the consolidation of long‐term withdrawal memory

2021 ◽  
Author(s):  
Da Shao ◽  
Zixuan Cao ◽  
Yali Fu ◽  
Hao Yang ◽  
Pengyu Gao ◽  
...  
Keyword(s):  
Anterior Cingulate Cortex ◽  
Basolateral Amygdala ◽  
Cingulate Cortex ◽  
Anterior Cingulate

scholarly journals Anterior cingulate cortex and its input to the basolateral amygdala control innate fear response

IBRO Reports ◽  
2019 ◽  
Vol 6 ◽  
pp. S185
Author(s):  
Min Soo Kang ◽  
Jinho Jhang ◽  
Hyoeun Lee ◽  
Han-Sol Lee ◽  
Hyungju Park ◽  
...  
Keyword(s):  
Anterior Cingulate Cortex ◽  
Basolateral Amygdala ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Fear Response ◽  
Innate Fear

scholarly journals Presynaptic long-term potentiation requires extracellular signal-regulated kinases in the anterior cingulate cortex

2020 ◽  
Vol 16 ◽  
pp. 174480692091724
Author(s):  
Qi-Yu Chen ◽  
Zhi-Ling Zhang ◽  
Qin Liu ◽  
Chao-Jun Chen ◽  
Xiao-Kang Zhang ◽  
...  
Keyword(s):  
Anterior Cingulate Cortex ◽  
Cingulate Cortex ◽  
Long Term Potentiation ◽  
Anterior Cingulate ◽  
Term Potentiation ◽  
Extracellular Signal

scholarly journals Anterior cingulate cortex and its input to the basolateral amygdala control innate fear response

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Jinho Jhang ◽  
Hyoeun Lee ◽  
Min Soo Kang ◽  
Han-Sol Lee ◽  
Hyungju Park ◽  
...  
Keyword(s):  
Anterior Cingulate Cortex ◽  
Basolateral Amygdala ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Fear Response ◽  
Innate Fear

scholarly journals Anterior cingulate cortex and ventral hippocampal inputs to the basolateral amygdala selectively control generalized fear

2019 ◽  
Author(s):  
Samantha Ortiz ◽  
Maeson S. Latsko ◽  
Julia L. Fouty ◽  
Sohini Dutta ◽  
Jordan M. Adkins ◽  
...  
Keyword(s):  
Anxiety Disorders ◽  
Anterior Cingulate Cortex ◽  
Basolateral Amygdala ◽  
Cingulate Cortex ◽  
Underlying Mechanism ◽  
Anterior Cingulate ◽  
Time Dependent ◽  
Common Symptom ◽  
Independent Manner ◽  
Cortical Regions

AbstractNearly one third of Americans have been afflicted with an anxiety disorder. A common symptom of anxiety disorders is the over generalization of fear across a broad range of contextual cues. We previously found that the anterior cingulate cortex and ventral hippocampus (vHPC) regulate generalized fear. Here, we investigate the functional projections from the ACC and vHPC to the amygdala and their role in governing generalized fear in a preclinical rodent model. A chemogenetic approach (DREADDs) was used to inhibit glutamatergic projections from the ACC or vHPC that terminate within the basolateral amygdala (BLA) at recent (1 day) or remote (28 days) time points after contextually fear conditioning male mice. Inactivating ACC or vHPC projections to the BLA significantly reduced generalized fear to a novel, nonthreatening context but had no effect on fear to the training context. Further, our data indicate that the ACC-BLA circuit supports generalization in a time-independent manner. We also identified for the first time a strictly time-dependent role of the vHPC-BLA circuit in supporting remote generalized contextual fear. Dysfunctional signaling to the amygdala from the ACC or the hippocampus could underlie over-generalized fear responses that are associated with anxiety disorders. Our findings demonstrate that the ACC and vHPC regulate fear expressed in novel, nonthreatening environments via projections to the BLA but do so as a result of training intensity or time, respectively.Significance StatementAnxiety disorders are characterized by a common symptom that promotes overgeneralization of fear in non-threatening environments. Dysregulation of the amygdala, anterior cingulate cortex (ACC), or hippocampus has been hypothesized to contribute to increased fear associated with anxiety disorders. Our findings show that the ACC and HPC projections to the basolateral amygdala regulate generalized fear in non-threatening, environments. However, descending ACC projections control fear generalization independent of time, whereas HPC projections play a strictly time-dependent role in regulating generalized fear. Thus, dysfunctional ACC/HPC signaling to the BLA may be a predominant underlying mechanism of non-specific fear associated with anxiety disorders. Our data have important implications for predictions made by theories about aging memories and interactions between the hippocampus and cortical regions.

Decreased cerebral blood flow of the right anterior cingulate cortex in long-term and short-term abstinent methamphetamine users☆

2006 ◽  
Vol 82 (2) ◽  
pp. 177-181 ◽  
Author(s):  
Jaeuk Hwang ◽  
In Kyoon Lyoo ◽  
Seog Ju Kim ◽  
Young Hoon Sung ◽  
Soojeong Bae ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Anterior Cingulate Cortex ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Short Term ◽  
The Right
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