Autonomic and cortical responses during anticipation of a sensory task and of feedback from task results

DISCRIMINATION

OF

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CHANGES

DIRECTION

OF

PERIPHERAL

SPONTA-

FINGER

TEM-

PERATURE

lying the test‘s sensitivity - and its validity in detecting truth _ it’s specificity - can be estimated from the numb-er of itema and alternatives edge

<‘. Lombardo

and C. Violani

Dipartimento

di Psicologia,

Test

aggregated Universith

‘La

Sapienza‘.

Roma,

values

Ss showing

hidirectional

ature

in an experimental

(TC)

direction kcya

in two

IS

the second

groups:

trials. first

informed

(RKR)

finger

no information

the

one of two

4X Ss were

randomly

group

following

(KR)

of the actual

the information

of SC giving KR.

correct

direction:

was random;

in trial

I and 3. I. 7 in trial ANOVA

of erroneous

that

BACK in

in the

effect

ol change

(TI:

yielded

3.1)

RKR

that

(27.36)

Discrimination difficult

ccptivr

feedhack

results

of is not (FB)

and

a marginally

higher

better of TI

significant

M. Aro

trial

in the set-

occurrence

of of TI:

and TD

in the tHo

effect

(F = 218.9.

spontaneous impossible

were more

temperature even

Finland

slow wave

negativity

preparation.

A recent

especially processes

to heart

data

visual

discrimination

feedhack

HR

the feedhack

unavoidable

atimulua.

judgements

field

\tudics

guilty

knowledge.

orienting

hoth

OF

Minneapolis.

al-

hy knowledge

GUILTY

MN.

is theoretically yield

overestimate

reflex

‘lie

in contrast. theory.

slow

negative are

the pretask

failed

to

A negative

Affective

\how shift

up

shift

shift.

rrliahlq

also preceded of whether

the task performance

last negative

;I

(I)

negative

the task. independent

with This

met:

and (2) there

IIR-deceleration.

all

shift

tachictoscoplc

or as an

showed

no con-

to the prr~timulus-HR-deceleration.

of

KNOWL-

U.S.A.

The

detector’ is based method’s

confe\nions, validity.

upon

well

validity

- FACTORS

AFFECTING;

ITS

II.

Lyytinen

studied

and T. Lepp&aari of Jwviiskyla.

negativity with

Finland

(MMN).

experimcnta

tion

to

daily

variation.

momentary

and

Effects

MMN

intervals

to

from

its btahility

exploring

arousal

circadian

of arousal deviant

and

habituation. variations

stimuli

the presentation

variation

are

MMN‘\

rela-

tluctuationa

and

are examined

occurring

hy

at different

of prcdictablc

arousing

tasks/stimuli.

implauaihle.

confirmatory

NEGATIVITY

VARIATION

The correct

that

conditions

because

stimulus.

contingently

relation

show two

SCR

it was given

this wave re\ponscs

and that affective

for a non-motor

pre-task

the loud tone given 9 s after

sistent

deceleration

if

may bc involved and

that

to autonomic

the task performance:

;L concomitant

without

time

only

task follow\

deceleration

\hows

ta\k

of motel

in its determination.

preparation

stimulus

proce\scs

01 Simons

1’_ suhjccts

also during

a predictable

of estero-

Lykkcn

detection

OF FEED-

ah ;L manifestation

relationship

rate (HR)

from

occurs

comparing

lie

review

may he involved

Our

preceding

studied

may have an interesting

University

DETECTION

Polygraphic

DURING

AND

trmpera-

changes

in absence

and is improved

of Minnesota.

TASK

2.

EDGE

D.T.

RESPONSES

and M. Liimatainen

bar been moctly

Mismatch

University

predicted

use of the GKT

RESULTS

of J@skyla,

brain

occurs

better

discrimination

trial

1 there

in trial

KR

significant

discrimination

The

in

a main

and hy practice.

POLYGRAPHIC

CORTICAL

TASK

MISMATCH

though

Knowl-

specificity

to the

the careful

OF A SENSORY

FROM

University

of

indicating

25.4) are discriminated

a main in trial

are close

to justiti

AND

H. Lyytinen,

a signifi-

(10.87).

(I; = 12.4 P = 0.001)

is not due to a greater

1’ = 0.02). indicating than

to

on the number

only

ture changes

higher

not

to the first.

to TD

In fact an ANOVA trials

hy direction

(DI = No. of cor-

(TI:

indicating

compared

TI compared

but

increases

(P = 0.07) trial

chance 2, I. 3

100) revealed

significantly

(4.87)

for direction decreases

ahovc

by trial index

of J *

.//No.

was

to NKR

that temperature than

2. A group

(J)

respectively:

(F = 4.1X P = 0.02). post hoc test indicating

discrimination

effect

ucrc

on a discrimination

effect

compared

judgemcnta

and NKR

change

rect ./-No.

and

was given.

RKR

cant group

of the Guilty

Sensitivity

investigation.

ANTICIPATION

stimulus Number

studies

all 313 Fuhjects

AUTONOMIC

The

level in groups.

Eight

reviewed.

tcmper-

were asked to judge

of 0.1 o C hy pressing in the

Ss were

group

(NKR)

in peripheral

setting

discrimination

to three

each judgement third

changes

of every fluctuation

assigned

and

over

are

and high enough

in criminal

1ta1ia

per item.

(GKT)

Since most

effects

show

MMN-amplitude.

Detecting

the

established

tion

in detecting

results are small

ject\.

MMN-latency. in the MMN

that

MMN

and arousal Arousal There

is quite

atahle.

manipulation\

fail

elevation

Habituation to affect

tends. however.

yeems to he some circadian

amplitude

which

is repeatable

the

to shorten within

variiisuh-