Firing pattern
element
Transient responses
Steady
-state responses
Characteristic of responses
Values of
parameters
Examples
References
Silence
Delayed (D)
Delay > DF
𝐼𝑆𝐼
1
+𝐼𝑆𝐼
2
2
DF
=2
PMID:
9497429
SiLeNce
(SLN)
PFS > PFS
𝐼𝑆𝐼
𝑛
+πΌπ‘†πΌπ‘›βˆ’
1
2
PFS > SF*
ISI
max
SF
=2
PMID:
22431345
Interrupted
Spiking
Adapting Spiking (ASP)
ISI
1
<ISI
2
<ISI
n
; to compare
2 parameter fit (
Y=a
1
X+b
1
) and
3 parameter fit (
Y=a
1
X+b
1
; Yb
2
)
p
2,1
<0.05;
p
3,2
>0.025;
a
1
>0.003
PMID:
9503336
Rapidly Adapting Spiking
(RASP)
ISI
1
<<ISI
2
<<ISI
3
Y=a
1
X+b
1
a
1
>S
RASP
S
RASP
=0.2
PMID:
11807843
Accelerating Spiking
(ACSP)
ISI
1
>ISI
2
>ISI
n
; to compare
2 parameter fit (
Y=a
1
X+b
1
) and
3 parameter fit (
Y=a
1
X+b
1
; Yb
2
)
p
2,1
<0.05;
p
3,2
>0.025;
a
1
>-0.003
Motoneuron
PMID:
25313866
Non
-Adapting Spiking
(NASP)
ISI
1
>ISI
2
>ISI
n
; to compare
2 parameter fit (
Y=a
1
X+b
1
) and
3 parameter fit (
Y=a
1
X+b
1
; Yb
2
)
p
2,1
>0.05
DG HICAP
PMID:
9151716
Stuttering
Transient
STUTtering
(TSTUT)
ISI
i
>Fpre*ISI
i-1
ISI
i
>Fpost*ISI
i-1
(1.1)
F
pre
=2.5
F
post
=1.5
f
min
=25 Hz
i=
2,3,4
PMID:
12209840
Persistent
STUTtering
(PSTUT)
(1.2)
F
PSTUT
=5
PMID:
20130170
Bursting
Transient Slow
-Wave
Bursting (TSWB)
Inequalities (1.1)
SWA >
SWA
min
F
pre
=2.5
F
post
=1.5
f
min
=25 Hz
i=
2,3,4
SWA
min
=
5 mV
PMID:
20510860
Persistent
Slow-Wave
Bursting (PSWB)
Inequality (1.2)
SWA >
SWA
min
F
PSTUT
=5
SWA
min
=
5 mV
Ca
2+
free ACSF
PMID:
16807352
Principles of classification of firing pattern elements
Abbreviations: a
1
– slope of linear fitting for normalized ISIs vs normalized time; ACSF - artificial cerebrospinal fluid; DF – delay factor; f
min
– minimum frequency of
stuttering or bursting; F
pre
, F
post
and F
PSTUT
– ISI comparison factors, ISI
max
–maximum interspike interval; p
2,1
– p-value for differences between two- and one-
parameter linear fitting; p
3,2
– p-value for differences between three- and two-parameter linear fitting; PFS – post firing silence; SF – silence factor; S
RASP
– slope of
linear fitting of rapid transient; SWA – slow wave amplitude; SWA
min
– minimum slow wave amplitude.