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These findings clarify the role of the amygdala and the medial temporal …


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Biology Articles » Neurobiology » Cognitive Neurobiology » Remembering one year later: Role of the amygdala and the medial temporal lobe memory system in retrieving emotional memories » Tables

Tables
- Remembering one year later: Role of the amygdala and the medial temporal lobe memory system in retrieving emotional memories


Table 1. Behavioral results

Memory performance
Emotional, %
Neutral, %
Overall (R + K)
   Hits 51.9 32.8
   FAs 21.9 11.4
   Hits - FAs 30 21.2
Remember (R)
   Hits 23.8 12.1
   FAs 6.4 3.3
   Hits - FAs 17.4 8.8
Know (K)
   Hits 28.1 20.7
   FAs 15.5 8.1
   Hits - FAs
12.6
12.6

Hits, old items correctly identified as old; FAs, new items incorrectly identified as old.



Table 2. Emotion effect on recollection in the MTL (t scores)

MTL regions
Emo rRS-kRS
Neu rRS-kRS
(Emo rRS-kRS) > (Neu rRS-kRS)
AMY 5.29 (R)/2.11 (L) 4.98 (R) 3.29 (R)
HC (head) 8.83 (R)/3.21 (L) 4.36 (R)/3.41 (L) 5.70 (R)
HC (body) 7.58 (R) 2.62 (R)/4.13 (L) 2.26 (L)
HC (tail) 3.95 (R)/3.94 (L) - 2.61 (R)/2.04 (L)*
APHG (EC) 3.98 (R) - -
APHG (PC) 2.64 (L) - -
PPHG
5.52 (R)/6.01 (L)
3.59 (R)
*

t statistics were performed on the signal extracted from the peak voxels identified in each MTL subregion and contrast of interest (t = 1.94, P

* For the (Emo rRS-kRS) > (Neu rRS-kRS) contrast, because the peak voxel fell on the border between the HC tail and the posterior parahippocampal gyrus, these two regions were considered together



Table 3. Correlations between the AMY and the MTL memory regions

MTL regions
AMY-MTL correlations: R scores (emotional rRS)
AMY-MTL correlations: R scores (neutral rRS)
AMY-MTL correlations: R scores (emotional kRS)
AMYgdala-MTL correlations: R scores (neutral kRS)
AMY (R) N/A N/A N/A N/A
HC (head) (R) 0.94**** 0.97**** 0.98**** 0.86*
HC (body) (L) 0.82* - 0.9*** -
HC (tail)/PPHG (R) 0.87** - - -
HC (tail)/PPHG (L)
0.77*
-
0.81*
0.76*

Correlations were calculated between the AMY and the MTL memory regions showing greater recollection- vs. familiarity-based retrieval success activity for emotional than for neutral pictures. The greatest differences were in the case of recollection-based responses. Similar to Table 2, the signals from posterior HC/parahippocampal regions were averaged together. RS, (hits - misses); rRS, recollection-based RS; kRS, familiarity-based RS. *, P P P P



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