EEG asymmetries during visceral perception tasks

s The p~wsent rcwlts the

EEPq

shouing

are necr\sary emotional ment

validate

that

the expressive component

the extracted

and sufficient

prototypical

for transmitting

the appropriate

message. Such finding provides an additional

to the

reliability

esperimcntal

of

using

EEP

of

elements argu-

reproduction

as an

derived

measures

cardiac

output

Thirty

in which

program

VEP

AND

PREPARATORY

AC-

TIVITY

and

Institute

and Nat&a

IlR.

Reactwity

reduction

E. Makaimova

of Psychology. AS U.S.S.R.,

after

in baseline

for

in sympathetic

a ten week

lectures.

to an equivalent

training

showed

(an IQ quiz). stress

instruction

in self-regulating

SBP,

in

finger

assessment

levels of SBP, DBP IQ

quiz

DBP.

significantly

HR

and

CO.

A

nervous system activity was pwtu-

lated as the cause for the ohaewed

Moscow

TPR.

psychophysiological

decreases

(SV), (TPR).

psychophysiolog-

except

completed

and practice

A second

~rcvenled significant decreased

Igor 0. Aleksandrov

volume

resistance

a preliminary

which included

techniques

skin temperature. OF

stroke

all variables.

of these subjects then

relaxation COMPONENT

(HR).

peripheral

significant increases to the psychological streswr management

N2

rate

and total

one subjects undenvent

ical assessment Sixteen

model for studying emotions.

of heart

(CO)

changes in cardiovascular

re>ponse. Ten Ss had to respond to the detected intensity by pressing a button. 0 I. 02).

EOG.

of

EEG

ASYMMETRIES

TION

TASKS

two

VEP\

caws

-

after

the detected

presence

micropressings to 6’)

of mm. thenar

CF.?. F-2. Cr. P3. P3.

hutton pressing (in the range of force from 0 up to 3 kg) were recorded.

EMG

flash of near-threshold

The EEG

before

‘There were identified

creased cat

I?, FV

preparatory

N2 and P3 componenta preparatory

for different activity

pressing after behavior

behavioral actwity

acts: ‘observation‘

and

chophysio ot the

the detected

hchavioral rctlectb

necessary for ‘report‘ OCCIII-s hefore

the court

and ‘report‘. hy

performance.

decreasing

BLOOD

PRESSURE BEFORE

AC;EMENT

PROGRAM

(pel-formance) provide

ot these

flash. i.e. in manifested

of N2 amplitude

important

mainly based on behavioral EEG

of hemispheric

to know whether

are lateralised

asymmetries

specialisation.

different

in and

II tot)

CARDIOGRAM

ERP

discrimination

model of viscct-al

subject\

were

asked

task\.

heart-

In experiment

to discriminate

‘
discrimination

EEG

ayhtems

of non-painful

I healthy young suhjecta pertormed

and auditory

colonwtomy

dlsten4on

might

It i\ alao

visccwsensory

in the harnt: way. Discrimination

In experiment heat, tactile

‘noiw’.

task wa$ also performed.

colon

A purr aud-

Asymmetries

of

a\ compared

to

power spectra in two visceral modalities

the auditory

control ta\k were ctrntra\ted.

(‘ORRELATES

OF SELF-REPOR?

CARDIOVASCULAR

AFTER

L. Alhright

of heartbcath.

data. Task dependent

new evidence

A

STRESS

MAN-

and Albert

R. Brock-

’.

‘I’. Baldeweg 11.L. Fehm

Glenn

University,

Several studies seem to prove the role of the right hemisphere in the perception

’ John 1.. Andreassi.

l%tv(is

Hungary

colon distensions may serve a5 an alternative

psy-

If actualization

OF

PERCEP-

and Gytirgy Ad;im

perception.

of

elements

IMPEDANCE

AND

Budapest.

Vidoi

Physiology.

methoda

renlizatlon.

AND

Jlilia Weisz. Tihor of Comparative

Analysis of motet

act. this pl-we\\.

MEASURES

FUNCTION

signal

of certain

activity. resultx in reduction

DERIVED

In tht\

of the latency of

the onset of a detected

latency of ‘report‘

Liiszli, Balba. Department

that the N? component

actualization

of the ‘observation‘

preparatory

was de-

in 7 Ss. The

performance

the

in

a\ a succession of tuo

IS the ha\ia for supposition

VEP

element\

PI IY

tlah

may he regarded

VISCERAL

the N2

across Ss. In

amplitude

decreasing

(up

flash.

of VEP

of the component.

there wa\ found significant

hutton

N?

DURING

fol

activity:

activity

leadings

the

up to the disappearance

detection

preparatory

the onset of the detected

In trial5 Nithout

was 5-7

uith

of

(up to 300 g) and saccadic eye movements

this paradigm. amplitude

flash were compared

vb absence

in the interval

trial\

and mrchanogram

Ctr.

Ulm.

J. Born .’ . P. Ull\pergrr

‘., A. Otterhein

Inst. Occupat.

Med.

_. R. Pietrowsky

‘,

” Berlin.

G.D.R.

and * (Jniversity

F.R.G.

well Baruch

College,

City

Univer+lty

of Nw

York.

New

York.

U.S.A.

This

stud)

examined

the

effect\

program on reactivity and baseline dia\tollc

(DBP)

hloud pressure

of

a \tres\

management

Iwcls ot systolic (SBP) and

and impedance

cardiography

Since

questionurics

medicine

the

present

correlate\

of wlf-report.

are

widely

used

study aimed Event-related

in

potentials

recorded while subject\ rated three repeatedly (‘hungry‘.

‘thirsty‘.

wit\ specified

’ tatigue‘)

psychology

at getting

and

physiological (ERP)

were

presented

items

from a mood checklist. Each item

by one of five adverbs

ranging

from

‘not’

to