Effects of pointing direction and direction predictability on event-related 
lateralizations of the EEG

Berndt, I; Franz, VH; Bülthoff, HH; Wascher, E

doi:10.1016/S0167-9457(02)00122-7

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Effects of pointing direction and direction predictability on event-related lateralizations of the EEG

MPS-Authors

/persons/resource/persons83803

Berndt, I
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84990

Franz, VH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons83839

Bülthoff, HH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

External Resource

https://www.sciencedirect.com/science/article/pii/S0167945702001227
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Berndt, I., Franz, V., Bülthoff, H., & Wascher, E. (2002). Effects of pointing direction and direction predictability on event-related lateralizations of the EEG. Human Movement Science, 21(3), 387-410. doi:10.1016/S0167-9457(02)00122-7.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-DEFB-4

Abstract

In two experiments, we investigated
hemispheric electroencephalography (EEG)
differences in 9(12) healthy volunteers
during pointing to lateral and central
targets. The questions addressed were
whether horizontal pointing direction
and the predictability of pointing
direction modulated hemispheric
differences (event-related
lateralizations of the EEG = ERLs). To
vary pointing direction predictability,
targets were displayed either randomly
at one of nine different positions on a
screen (random) or at the same
horizontal position in five subsequent
trials (sequenced) while vertical
positions varied randomly. Event-related
lateralizations (ERLs) varied with
pointing direction. This was true across
changes in target eccentricity and
pointing distance. Foci of the ERLs were
in premotor and posterior parietal
cortex, which might reflect the critical
involvement of these areas in the
control of visually guided
reaching. Direction predictability
reduced the parietal and premotor ERL
before pointing onset, probably
reflecting a lesser effort in visuomotor
transformation. Predictability also
added an overlying N2pc component to the
early ERL after target onset and
increased direction effects during
movement.