2011.03.14 Wen-Yi Wu Empathy-Related Neuron in Anterior Cingulate Cortex and Insular Cortex of Rats
2011.03.14 Wen-Yi Wu Empathy-Related Neuron in Anterior Cingulate Cortex and Insular Cortex of Rats.
Jan 03, 2016
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2011.03.14Wen-Yi Wu
Empathy-Related Neuron in Anterior Cingulate Cortex and Insular Cortex of Rats
Purpose of the Study
1. To investigate whether empathy-related behaviors can be found in the rat.
2. To investigate whether empathy-related neurons can be found in the ACC and InC.
3. To explore if visual cue is important to empathy.
Material and Methods - I• Rat: Female Long-Evans • Body weight: 250-300g• Anesthesia: Pentobarbital 50 mg/ kg• Implant:16-channel stainless steel microwire electrodes in ACC• Recovery: 7 days• Habituation: 3 days, 30-60 min/ day • Testing chamber: two 27 cm x 21 cm x 17 cm perforated Plexiglas divider• Noxious thermal stimulation: infrared CO2 laser beam directed to the forepaw
• Multiple single unit recording: Plexon MNAP system and SortClient Program
• Video tracking system: CinePlex system
• Analysis: Nex Program and Offline Sorterdemonstrator observer
Procedure demonstrator observer
1 mm
demo 1
demo 2
observer(self)
air 2
air 1
implant
day 0 5 6 7
habituate 30min/dayday7: testing
experiment group: transparentcontrol group: opaque
testing
2 mm
beh
avio
r p
erce
ntag
e (%
)
0
20
40
60
80
100 frezzingsniffingsocial investigation
air 1 demo1 self demo2 air 2
beh
avio
r p
erce
ntag
e (%
)
0
20
40
60
80
100 frezzingsniffingsocial investigation
air 1 demo1 self demo2 air 2
Transparent
Opaque
Observer’s Behavior
f n i w h r d0
25
50
75
100air 1demo1
beh
avi
or
pe
rcen
tag
e (%
)
*
**
f n i w h r d0
25
50
75
100air 1demo 1
beh
avio
r pe
rce
ntag
e (%
)
Abbreviation: f, freezing; n, sniffing; I, social investigation; w, walking; h, heading; r, resting; d, seizure.
Unit-Behavior Recording
-2 0 2 4 6Time (sec)
0
2
4
6
8
10
sig003b
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
mirror neuron
demo 1+self +demo 2+air 2
air 1
ACC
mirror neuron
self +demo 2 air 2
air 1demo 1+
InC
anti-mirror neuron
InC
self -demo 2 +air 2
air 1demo 1 +
-2 0 2 4 6Time (sec)
0
5
10
15
20
25
sig012b
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 29 12b demo+ self-
self +demo 2 +air 2
air 1demo 1
-2 0 2 4 6Time (sec)
0
2
4
6
8
sig006a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
100223 6a self+ demo2+
air 1demo 1 -self +demo 2 +air 2
-2 0 2 4 6Time (sec)
0
5
10
15
20
25
sig006a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
-2 0 2 4 6Time (s)
Rat 32 6a demo1- self+ demo2+
-2 0 2 4 6Time (s)
self +demo 2 -air 2
air 1demo 1 -
-2 0 2 4 6Time (sec)
0
1
2
3
4
sig013a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 32 13a demo1- self+
-2 0 2 4 6Time (s)
-2 0 2 4 6Time (sec)
0
2
4
6
8
10
sig008a
Perievent Rasters, reference = Event005, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 14 8a demo+ self+
red: EXCgreen: INH
: demo trial: self trial
Rat 30 3b other1+ self +
20
10
0
20
10
0
20
10
0-2 0 2 4 6
Time (sec)
0
10
20
sig006a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig006a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig006a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
Time (s)
mirror neuron
ACC
Freq
uenc
y (im
p/se
c)dem
o1se
lfde
mo2
-2 0 2 4 6
ACC
20
10
0
mirror neuron
20
10
0
20
10
0-2 0 2 4 6
Freq
uenc
y (im
p/se
c)dem
o1se
lfde
mo2
Time (s)
20
10
0
20
10
0
20
10
0
InC
Time (s)-2 0 2 4 6
mirror neuron
60
40
0
60
4020
0-2 0 2 4 6
Time (sec)
0
20
40
60
sig006a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)InC
60
4020
0-2 0 2 4 6
Time (sec)
0
20
40
60
sig006a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
20
-2 0 2 4 6Time (sec)
0
20
40
60
sig006a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
Time (s)-2 0 2 4 6
mirror neuron
40
20
0
40
20
0
40
20
0
-2 0 2 4 6Time (sec)
0
20
40
sig012b
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
20
40
sig012b
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
20
40
sig012b
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
InC
Time (s)-2 0 2 4 6
anti-mirror neuron
20
10
0
20
10
0
20
10
0-2 0 2 4 6
Time (sec)
0
10
20
sig013a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig013a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig013a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
InC
-2 0 2 4 6
anti-mirror neuron
Time (s)
-2 0 2 4 6Time (sec)
0
10
20
sig008a
Perievent Rasters, reference = Event005, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig008a
Perievent Rasters, reference = Event005, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig008a
Perievent Rasters, reference = Event005, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig003b
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig003b
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
10
20
sig003b
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
ACC Transparent
air 1
-2 0 2 4 6
Z s
core
-4
-2
0
2
4
6
other 1
-2 0 2 4 6
other 2
-2 0 2 4 6
air 2
-2 0 2 4 6
**
*
Time (s) Time (s) Time (s) Time (s)
ACC Opaque
air 1
-2 0 2 4 6
Z s
core
-4
-2
0
2
4
6
8
other 1
-2 0 2 4 6
other 2
-2 0 2 4 6
air 2
-2 0 2 4 6Time (s) Time (s) Time (s) Time (s)
other 1
-2 0 2 4 6
other 2
-2 0 2 4 6
air 2
-2 0 2 4 6
air 1
-2 0 2 4 6
Z s
core
-4
-2
0
2
* ** * *
† †
Time (s) Time (s) Time (s) Time (s)
EXC
INH
InC Opaqueair 1
-2 0 2 4 6
Z s
core
-4
-2
0
2
4
6
8
demo 1
-2 0 2 4 6
demo 2
-2 0 2 4 6
air 2
-2 0 2 4 6
Time (s) Time (s) Time (s) Time (s)
air 1
-2 0 2 4 6
Z s
core
-4
-2
0
2
4
6
demo 1
-2 0 2 4 6
demo 2
-2 0 2 4 6
air 2
-2 0 2 4 6
**
†
Time (s) Time (s) Time (s) Time (s)
InC Transparent
Conclusion
• Rats showed more freezing, sniffing and social investigation when observing another rat in pain.
• Empathy-related neurons could be found in the ACC and insular cortex of the rat.
-2 0 2 4 6Time (sec)
0
6
12
sig009a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
6
12
sig009a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
6
12
sig009a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
12
24
sig008a
Perievent Rasters, reference = Event005, bin = 50 msF
req
ue
ncy
(im
p/s
ec)
-2 0 2 4 6Time (sec)
0
12
24
sig008a
Perievent Rasters, reference = Event005, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
12
24
sig008a
Perievent Rasters, reference = Event005, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
Time (s) Time (s)
Freq
uenc
y (im
p/se
c)Fr
eque
ncy
(imp/
sec)
Freq
uenc
y (im
p/se
c)
demo1
self
demo2
-2 0 2 4 6Time (sec)
0
7
14
sig009a
Perievent Rasters, reference = Event003, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
7
14
sig009a
Perievent Rasters, reference = Event003, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
7
14
sig009a
Perievent Rasters, reference = Event003, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
6
12
sig012a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
6
12
sig012a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
6
12
sig012a
Perievent Rasters, reference = Event006, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
Freq
uenc
y (im
p/se
c)
-2 0 2 4 6Time (sec)
0
12
24
sig012a
Perievent Rasters, reference = Event005, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
12
24
sig012a
Perievent Rasters, reference = Event005, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
-2 0 2 4 6Time (sec)
0
12
24
sig012a
Perievent Rasters, reference = Event005, bin = 50 ms
Fre
qu
en
cy (
imp
/se
c)
Freq
uenc
y (im
p/se
c)Fr
eque
ncy
(imp/
sec)
dem
o1se
lfde
mo2
Time (s) Time (s) Time (s)
-2 0 2 4 6Time (sec)
0
2
4
6
8
10
12
sig002a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
-2 0 2 4 6Time (sec)
0
2
4
6
sig014a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 33 14a demo1+ self+ demo2-ACC 100130 12a
-2 0 2 4 6Time (sec)
0
1
2
3
4
sig012a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
-2 0 2 4 6Time (sec)
0
2
4
6
8
10
sig012a
Perievent Rasters, reference = Event005, bin = 50 ms
Freq
uenc
y (im
p/se
c)
ACC Rat 14 12a self+
-2 0 2 4 6Time (sec)
0
2
4
6
8
10
sig003a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 32 3a self+ demo2+
-2 0 2 4 6Time (sec)
0
2
4
6
sig007b
Perievent Rasters, reference = Event004, bin = 50 ms
Freq
uenc
y (im
p/se
c)
-2 0 2 4 6Time (sec)
0
5
10
15
sig005b
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 30 5b self -
-2 0 2 4 6Time (sec)
0
2
4
6
8
sig004a
Perievent Rasters, reference = Event004, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 11 4a Rat 10 7b demo1- self-
-2 0 2 4 6Time (sec)
0
1
2
3
4
sig015a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 31 15a self- demo2-
-2 0 2 4 6Time (sec)
0
2
4
6
8
10
sig003b
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 30 3b other1+ self +
-2 0 2 4 6Time (sec)
0
1
2
3
4
sig007a
Perievent Rasters, reference = Event004, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 11 7a
-2 0 2 4 6Time (sec)
0
0.5
1
1.5
2
sig015a
Perievent Rasters, reference = Event004, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 11 15a demo1 -
Rat 7 2a demo1+ self+
-2 0 2 4 6Time (sec)
0
2
4
6
8
sig012a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
Rat 22 12a demo1+ self+
-2 0 2 4 6Time (sec)
0
2
4
6
sig010a
Perievent Rasters, reference = Event006, bin = 50 ms
Freq
uenc
y (im
p/se
c)
100302 10a
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