DOI: 10.5061/dryad.707g2
title: Data from: Direction of biological motion affects early brain activation: a link with social cognition

description: A number of EEG studies have investigated the time course of brain
 activation for biological movement over this last decade, however the
 temporal dynamics of processing are still debated. Moreover, the role of
 direction of movement has not received much attention even though it is an
 essential component allowing us to determine the intentions of the moving
 agent, and thus permitting the anticipation of potential social
 interactions. In this study, we examined event-related responses (ERPs) in
 15 healthy human participants to light point walkers and their scrambled
 counterparts, whose movements occurred either in the radial or in the
 lateral plane. Compared to scrambled motion (SM), biological motion (BM)
 showed an enhanced negativity between 210 and 360ms. A source localization
 algorithm (sLORETA) revealed that this was due to an increase in superior
 and middle temporal lobe activity. Regarding direction, we found that
 radial BM produced an enhanced P1 compared to lateral BM, lateral SM and
 radial SM. This heightened P1 was due to an increase in activity in
 extrastriate regions, as well as in superior temporal, medial parietal and
 medial prefrontal areas. This network is known to be involved in decoding
 the underlying intentionality of the movement and in the attribution of
 mental states. The social meaning signaled by the direction of biological
 motion therefore appears to trigger an early response in brain activity.
description: Biological motion
 individual ERP filesThese are the ERP files
 of every subject in each condition, used in the paper entitled
 "Direction of biological motion affects early brain ativation: a link
 with social cognition", by Pegna, Gehring, Meyer & Del Zotto, and
 published in PLoS-One. Data for each of the 4 experimental conditions
 (radial iological motion -rBM- ; lateral biological motion -lBM-; radial
 scrambled motion -rSM-; and lateral scrmbled motion -lSM-) are placed in
 separate folders named for the condition. Within each folder, the ERP of
 each subject is given under the subject number; i.e., 1s for the first
 subject, 2s for the second subjects and so forth, followed by the
 abberviation of the experimental condition. Thus for example, the ERP of
 the 1st subject in the lateral scrambled motion condition is given the
 name "1s_lSM.txt". The data within the each file is given in
 ASCII format with each column corresponding to a given electrode and each
 row to a time frame. There are 64 columns corresponding to the following
 electrodes (in order) from left to right: Fp1, AF7; AF3; F1; F3; F5; F7;
 FT7; FC5; FC3; FC1; C1; C3; C5; T7; TP7; CP5; CP3; CP1; P1; P3; P5; P7;
 P9; PO7; PO3; O1; Iz; Oz; POz; Pz; CPz; Fpz; Fp2; AF8; AF4; Afz; Fz; F2;
 F4; F6; F8; FT8; FC6; FC4; FC2; FCz; Cz; C2; C4; C6; T8; TP8; CP6; CP4;
 CP2; P2; P4; P6; P8; P10; PO8; PO4; O2. There are 1126 rows corresponding
 to the successive time frames over time beginning 100ms before the
 appearance of the stimulus at the top row. As the sampling rate was of
 1024 Hz, each time frame corresponds to 0.976ms. The total duration of the
 epochs is consequently of 1098.632 ms (1126 time frames). A separate file
 named Biosemi_64.els is included containing the names of the electrodes as
 well as their cartesian coordinates.biomotion.zip