The influence of flash characteristics on the visual and haptic flash-lag effect - research data from the 2012/2013 study.

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Drewing, Knut
Hitzel, Elena
Scocchia, Lisa


Dataset Information

Title The influence of flash characteristics on the visual and haptic flash-lag effect - research data from the 2012/2013 study.
Original Title Der Einfluss sensorischer Charakteristika des "Flash" auf den visuellen und haptischen "Flash Lag"-Effekt - Forschungsdaten zur Studie von 2012/13.
Citation Drewing, K., Hitzel, E., & Scocchia, L. (2017). The influence of flash characteristics on the visual and haptic flash-lag effect - research data from the 2012/2013 study. [Translated Title] (Version 1.0.0) [Data and Documentation]. Trier: Center for Research Data in Psychology: PsychData of the Leibniz Institute for Psychology ZPID.
Language of variable documentation German/English
Responsible for Data Collection Drewing, Knut; Hitzel, Elena; Scocchia, Lisa
Data Collection Completion Date 2013
Dataset Publication 2017
Dataset ID dgkt13ei29
Study Description When a short flash occurs in spatial alignment with a moving object, the moving object is seen ahead the stationary one. Similar to this visual “flash-lag effect” (FLE) it has been recently observed for the haptic sense that participants judge a moving hand to be ahead a stationary hand when judged at the moment of a short vibration (“haptic flash”) that is applied when the two hands are spatially aligned. We further investigated the haptic FLE. First, we compared participants’ performance in two isosensory visual or haptic conditions, in which moving object and flash were presented only in a single modality (visual: sphere and short color change, haptic: hand and vibration), and two bisensory conditions, in which the moving object was presented in both modalities (hand aligned with visible sphere), but the flash was presented only visually or only haptically. The experiment aimed to disentangle contributions of the flash’s and the objects’ modalities to the FLEs in haptics versus vision. We observed a FLE when the flash was visually displayed, both when the moving object was visual and visuo-haptic. Because the position of a visual flash, but not of an analogue haptic flash, is misjudged relative to a same visuo-haptic moving object, the difference between visual and haptic conditions can be fully attributed to characteristics of the flash. The second experiment confirmed that a haptic FLE can be observed depending on flash characteristics: the FLE increases with decreasing intensity of the flash (slightly modulated by flash duration), which had been previously observed for vision. These findings underline the high relevance of flash characteristics in different senses, and thus fit well with the temporal-sampling framework, where the flash triggers a high-level, supra-modal process of position judgement, the time point of which further depends on the processing time of the flash.
Hypotheses Information forthcoming
Keyphrase flash-lag effect; visuell & haptic stimuli; temporal sampling; importance of sensory characteristics of stimuli; haptic mislocalizations; motor control; 2 experiments; total of 17 young adults aged 20-27 years
Funding German Research Foundation: CRC/ TRR 135, Project A5 (Knut Drewing)
Rating -
File Access Criteria

Data files and additional material that belong to access category 1indication of an academic email account and the intended use


PSYNDEX Classification and Controlled Terms

Classification Sensory Perception
Motor Processes
Controlled Terms Tactual Perception
Visual Perception
Illusions (Perception)
Motion Perception
Fingers (Anatomy)


Research Method Description

Research Method Description Experiment Data
Classification of Data Collection Experimental design, Laboratory experiment
Research Instrument Information forthcoming
Data Collection Method Data collection in the presence of an experimenter
- Computer-Supported
Time Points repeated measurements
Survey Time Period Experiment 1: 2 sessions of 2.5 h each within one week
Experiment 2: 2 sessions of 3.5 h each within one week
Characteristics -
Population Psychology students; young adults
Experimental Pool Individuals
Sample Convenience sample
Subject Recruitment Recruitment via mailing list for Psychology students at the Giessen University
Sample Size Experiment 1: 8 individuals; Experiment 2: 9 (+2) individuals
Return/Drop Out Information forthcoming
Gender Distribution 76 % female subjects
24 % male subjects
Age Distribution 20-27 years
Special Groups -
Country Germany
Region Hessen
City Gießen
Variables One row in the data file corresponds to a single trial; variables both from Experiment 1 and 2 are presented:
Experiment 1 or 2
Participant number
Session number, number of block in session, number of trial in block/session Experimental condition
Flash Duration
Flash Force, Flash Frequency (for haptic flash)
Startpoint Movement of trajectory center
Moving finger
Number of movement segment in that the flash was presented Position of moving object during flash onset relative to stationary object
Time point when the flash starts after trial start
Time point when the moving object crosses the stationary one in the movement segment with the flash
Measurement errors
Participant's response


Data Status

Data Status Complete Data Set
Original Records Individual process recordings using a computerized survey method (subject-related data files)
Transformation Information forthcoming


Description of the Provided Data

Description Research data file
File Name dgkt13ei29_fd.txt
Data Content 18 variables, 15232 trials
Data Points 18*15232 = 274176 data points
Variables -
MD5 Hash e6bc0ac4edd0dfbb1347002658180f34
File Access Criteria access category 1indication of an academic email account and the intended use


Description of Additional Materials

Description File Name
Codebook of research data file dgkt13ei29_fd.txt dgkt13ei29_kb.txt


Publications Directly Related to the Dataset

Publications Directly Related to the Dataset
Drewing, K., Hitzel, E. & Scocchia, L. (2017). The Haptic and the Visual Flash-Lag Effect and the Role of Flash Characteristics. PLoS ONE 13(1): e0189291. doi: 10.1371/journal.pone.0189291


Further Reading

Further Reading
Brenner, E., van Beers, E.R., Rotman, G., & Smeets, J.B. (2006). The role of uncertainty in the systematic spatial mislocalization of moving objects. Journal of Experimental Psychology: Human Perception & Performance 32, 811–825.
Cellini, C., Scocchia, L., & Drewing, K. (2016). The buzz-lag effect. Experimental Brain Research 234, 2849-2857. Datensatz 0318708
Hubbard, T.L. (2014). The flash-lag effect and related mislocalizations: Findings, properties, and theories. Psychological Bulletin 40, 308-338.
Nijhawan, R. (2002). Neural delays, visual motion and the flash-lag effect. Trends in Cognitive Science 6, 387-393.
Whitney, D., Murakami, I., & Cavanagh, P. (2000). Illusory spatial offset of a flash relative to a moving stimulus is caused by differential latencies for moving and flashed stimuli. Vision Research 40, 137-149.
Wichmann FA, Hill NJ. The psychometric function: I. Fitting, sampling, and goodness of fit. Percept Psychophys. 2001;63:1293-1313.


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