Presentation is loading. Please wait.

Presentation is loading. Please wait.

Event-Related Potentials during Cued and Voluntary Task-Switching Henrike Welpinghus Universität Bremen

Published byLaurence Nicholson Modified over 9 years ago

Similar presentations

Presentation on theme: "Event-Related Potentials during Cued and Voluntary Task-Switching Henrike Welpinghus Universität Bremen"— Presentation transcript:

1 Event-Related Potentials during Cued and Voluntary Task-Switching Henrike Welpinghus Universität Bremen henrike.welpinghus@gmx.de

2 Question and experiment Which specific processes underlie voluntarily chosen actions? – Comparison between cued and voluntary task-switching EEG measurements on 15 healthy participants (8 male, age: 23.2 ± 2.9 years) Event-related Potentials – P3 component on parietal electrodes 2

3 Repeat Horizontal task Switch From horizontal to vertical task Preparation Execution Cued condition 3 Voluntary condition

4 P3 component during preparation P3 range: 300-600 ms after warning-stimulus onset Reduced amplitude in voluntary condition (F(1,14)=15.49, p=0.001) 4 Lateralization towards right hemisphere (F(2,28)=5.04, p=0.014)

5 Discussion Lateralization towards right hemisphere – Spatial attention (Macaluso & Doricchi, 2013) Reduction of P3 component in voluntary condition – Higher working memory load due to additional cognitive task – Working memory increase  reduction of P3 component (Kok, 2001) Reflecting decision-making process? – Decision might be jittered 5

6 References Kok, A. (2001). On the utility of P3 amplitude as a measure of processing capacity. Psychophysiology, 38(3), 557-577. Macaluso, E., & Doricchi, F. (2013). Attention and predictions: control of spatial attention beyond the endogenous-exogenous dichotomy. Front Hum Neurosci, 7, 685. doi: 10.3389/fnhum.2013.00685 6

Download ppt "Event-Related Potentials during Cued and Voluntary Task-Switching Henrike Welpinghus Universität Bremen"

Similar presentations

Component Processes in Task Switching Meiran, N., Chorev, Z. & Sapir, A. (2000). Component Processes in Task Switching Cognitive Psychology, 41, 211-253.

Component Processes in Task Switching Meiran, N., Chorev, Z. & Sapir, A. (2000). Component Processes in Task Switching Cognitive Psychology, 41,
Early studies of the development of recognition memory in infants demonstrated a negative component over central leads (Nc) with greater amplitude in event-related.

Early studies of the development of recognition memory in infants demonstrated a negative component over central leads (Nc) with greater amplitude in event-related.
All slides © S. J. Luck, except as indicated in the notes sections of individual slides Slides may be used for nonprofit educational purposes if this copyright.

All slides © S. J. Luck, except as indicated in the notes sections of individual slides Slides may be used for nonprofit educational purposes if this copyright.
Event-related potentials (ERPs) have been used in past research to study the correlates and consequences of alcohol use (Porjesz et al., 2005). In particular,

Event-related potentials (ERPs) have been used in past research to study the correlates and consequences of alcohol use (Porjesz et al., 2005). In particular,
Speed of processing, the missing measure in early detection of MCI? Ruth O’Hara March 13 th 2001 Yogesh Shah.

Speed of processing, the missing measure in early detection of MCI? Ruth O’Hara March 13 th 2001 Yogesh Shah.
Chapter Five The Cognitive Approach II: Memory, Imagery, and Problem Solving.

Chapter Five The Cognitive Approach II: Memory, Imagery, and Problem Solving.
P3 target cue 200400 target long CTI cue 200 400 600 800 1000 target cue 200 400 600 800 1000 short CTI children old PZ cue 200400 target Cue-related ERPs.

P3 target cue target long CTI cue target cue short CTI children old PZ cue target Cue-related ERPs.
Word Imagery Effects on Explicit and Implicit Memory Nicholas Bube, Drew Finke, Darcy Lemon, and Meaghan Topper.

Word Imagery Effects on Explicit and Implicit Memory Nicholas Bube, Drew Finke, Darcy Lemon, and Meaghan Topper.
ERPs to Semantic and Physical Anomalies in Cartoon Videos Jennifer Michelson 1, Courtney Brown 1, Laura Davis 1, Tatiana Sitnikova 2 & Phillip J. Holcomb.

ERPs to Semantic and Physical Anomalies in Cartoon Videos Jennifer Michelson 1, Courtney Brown 1, Laura Davis 1, Tatiana Sitnikova 2 & Phillip J. Holcomb.
Visual Attention: Outline Levels of analysis 1.Subjective: perception of unattended things 2.Functional: tasks to study components of attention 3.Neurological:

Visual Attention: Outline Levels of analysis 1.Subjective: perception of unattended things 2.Functional: tasks to study components of attention 3.Neurological:
Dissociable neural mechanisms supporting visual short-term memory for objects Xu, Y. & Chun, M. M. (2006) Nature, 440, 91-95.

Dissociable neural mechanisms supporting visual short-term memory for objects Xu, Y. & Chun, M. M. (2006) Nature, 440,
Participants seem to utilize predictive information to actively maintain both task sets when doing so aids performance. Decreased mixing and switch costs.

Participants seem to utilize predictive information to actively maintain both task sets when doing so aids performance. Decreased mixing and switch costs.
Chapter 11: Mental Workload, Stress and Individual Differences: Cognitive and Neuroergonomic Approaches Slide Template.

Chapter 11: Mental Workload, Stress and Individual Differences: Cognitive and Neuroergonomic Approaches Slide Template.
INTRODUCTION Emotional stimuli that are irrelevant to task performance may redirect attentional resources, particularly among individuals evidencing high.

INTRODUCTION Emotional stimuli that are irrelevant to task performance may redirect attentional resources, particularly among individuals evidencing high.
The Brain How is the brain structured? How are the parts connected?

The Brain How is the brain structured? How are the parts connected?
Conclusions Funding: NIH R01DC012037  The ERP findings for the language task are not surprising given that the P600 component has often been evoked by.

Conclusions Funding: NIH R01DC  The ERP findings for the language task are not surprising given that the P600 component has often been evoked by.
Sexual video-stimulation and cognitive evoked potentials: a tool for the assessment of human sexual desire Molo M, Balsamo A, Castelli L, Cotroneo D, Perozzo.

Sexual video-stimulation and cognitive evoked potentials: a tool for the assessment of human sexual desire Molo M, Balsamo A, Castelli L, Cotroneo D, Perozzo.
Understanding Movement Preparation

Understanding Movement Preparation
Change blindness and time to consciousness Professor: Liu Student: Ruby.

Change blindness and time to consciousness Professor: Liu Student: Ruby.
Introduction Multiple Sclerosis (MS) is a chronic inflammatory disease characterized by the demyelization of axons within the central nervous system (CNS).

Introduction Multiple Sclerosis (MS) is a chronic inflammatory disease characterized by the demyelization of axons within the central nervous system (CNS).

Similar presentations

Ads by Google