Corticosterone administration after a single-trial contextual fear conditioning does not influence the strength and specificity of recent and remote memory in rats

2017 ◽  
Vol 171 ◽  
pp. 175-180 ◽  
Author(s):  
Ana Paula A. Bueno ◽  
Joselisa Péres Queiroz de Paiva ◽  
Moisés dos Santos Corrêa ◽  
Paula Ayako Tiba ◽  
Raquel Vecchio Fornari
Keyword(s):  
Fear Conditioning ◽  
Contextual Fear Conditioning ◽  
Remote Memory ◽  
Single Trial ◽  
Contextual Fear

scholarly journals Factors governing single-trial contextual fear conditioning in the weanling rat.

2009 ◽  
Vol 123 (5) ◽  
pp. 1148-1152 ◽  
Author(s):  
M. A. Burman ◽  
N. J. Murawski ◽  
F. L. Schiffino ◽  
J. B. Rosen ◽  
M. E. Stanton
Keyword(s):  
Fear Conditioning ◽  
Contextual Fear Conditioning ◽  
Single Trial ◽  
Contextual Fear

scholarly journals Spectral characteristics of the hippocampal LFP during contextual fear conditioning

2012 ◽  
Vol 10 (2) ◽  
pp. 140-144 ◽  
Author(s):  
Birajara Soares Machado ◽  
Ana Carolina Bione Kunicki ◽  
Edgard Morya ◽  
Koichi Sameshima
Keyword(s):  
Power Spectrum ◽  
Fear Conditioning ◽  
Wistar Rats ◽  
Spectral Characteristics ◽  
Contextual Fear Conditioning ◽  
Theta Oscillations ◽  
Remote Memory ◽  
Contextual Fear ◽  
Active Exploration ◽  
The Relationship

OBJECTIVE: The hippocampus has an important role in the acquisition and recall of aversive memories. The objective of this study was to investigate the relationship among hippocampal rhythms. METHODS: Microeletrodes arrays were implanted in the hippocampus of Wistar rats. The animals were trained and tested in a contextual fear conditioning task. The training consisted in applying shocks in the legs. The memory test was performed 1 day (recent memory) or 18 days (remote memory) after training. We proposed a measure based on the FFT power spectrum, denominated "delta-theta ratio", to characterize the different behaviors (active exploration and freezing) and the memories types. RESULTS: The delta-theta ratio was able to distinguish recent and remote memories. In this study, the ratio for the 18-day group was smaller than for the 1-day group. Moreover, this measure was useful to distinguish the different behavior states – active exploration and freezing. CONCLUSIONS: The results suggest delta-theta oscillations could reflect the demands on information processing during recent and remote memory recalls.

Role of dorsal and ventral hippocampal muscarinic receptor activity in acquisition and retention of contextual fear conditioning.

2020 ◽  
Vol 134 (5) ◽  
pp. 460-470
Author(s):  
Claudia C. Pinizzotto ◽  
Nicholas A. Heroux ◽  
Colin J. Horgan ◽  
Mark E. Stanton
Keyword(s):  
Fear Conditioning ◽  
Muscarinic Receptor ◽  
Contextual Fear Conditioning ◽  
Receptor Activity ◽  
Contextual Fear

scholarly journals Dysbindin-1 loss compromises NMDAR-dependent synaptic plasticity and contextual fear conditioning

Hippocampus ◽  
2013 ◽  
Vol 24 (2) ◽  
pp. 204-213 ◽  
Author(s):  
W. Bailey Glen ◽  
Bryant Horowitz ◽  
Gregory C. Carlson ◽  
Tyrone D. Cannon ◽  
Konrad Talbot ◽  
...  
Keyword(s):  
Synaptic Plasticity ◽  
Fear Conditioning ◽  
Contextual Fear Conditioning ◽  
Contextual Fear

Hippocampal NMDA receptor blockade impairs CREB phosphorylation in amygdala after contextual fear conditioning

Hippocampus ◽  
2013 ◽  
Vol 23 (7) ◽  
pp. 545-551 ◽  
Author(s):  
Cesar Augusto de Oliveira Coelho ◽  
Tatiana Lima Ferreira ◽  
Juliana Carlota Kramer Soares ◽  
Maria Gabriela Menezes Oliveira
Keyword(s):  
Nmda Receptor ◽  
Fear Conditioning ◽  
Contextual Fear Conditioning ◽  
Receptor Blockade ◽  
Creb Phosphorylation ◽  
Contextual Fear ◽  
Nmda Receptor Blockade
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