Paper Information

Journal:   KOWSAR MEDICAL JOURNAL   Summer 2004 , Volume 9 , Number Part 2; Page(s) 111 To 118.
 
Paper: 

THE ROLE OF BASOLATERAL AMYGDALA IN RAT"S ON HIPPOCAMPAL DEPENDENT SPATIAL MEMORY IN PLACE

 
 
Author(s):  VAFAEI A.A., RASHIDIPOUR A.
 
* 
 
Abstract: 
Objective. Previous studies indicate that the basolateral amygdala (BLA) probably is involved in emotional learning and modulation of spatial memory. The aim of the present study was to determine the role of BLA in hippocampal dependent spatial memory in dark and light conditions in rotating arena in place avoidance learning (PAL) tasks.
Materials and Methods. Male Long-Evans strain rats (280-320 gr) used in this study (n=12 in 12 groups). At the first implanted guide cannulae bilaterally aimed at the BLA were placed. One week later they trained to PAL in rotating arena. Bilateral injections of Tetrodotoxin (TTX) (5ng/O.6ul/side) or saline were used to the BLA 60 min before, immediately after training and 60 min before retrieval test. Spatial memory were assessed during a 30-min extinction trial 24 h later by two criteria: 1) The time to the first entry and 2) The number of entrances into the punished sector.
Results. The results indicated that injection of TTX impaired acquisition, consolidation and retrieval of spatial memory in dark and light area significantly (P<0.01).
Conclusion. Findings indicated that BLA have important role in aquisition, consolidation and retrieval of hippocampal dependent spatial memory in dark and light space and rotating arena of PAL.
 
Keyword(s): BASOLATERAL AMYGDALA, PLACE AVOIDANCE LEARNING, ACQUISITION, CONSOLIDATION, RETRIEVAL, SPATIAL MEMORY STORAGE, TETRODOTOXIN
 
References: 
  • ندارد
 
  Yearly Visit 55
 
Latest on Blog
Enter SID Blog