Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Decision Making01:20

Decision Making

380
Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
380
Decision Making: Traditional Method01:14

Decision Making: Traditional Method

4.4K
The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
4.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Stimulation-evoked orbitofrontal activity as a biomarker for DBS personalization in depression.

medRxiv : the preprint server for health sciences·2026
Same author

Autologous Fat Grafting to Prevent Erosion and Pain Over Neuromodulation Hardware: Technical Case Series.

Neurosurgery practice·2026
Same author

Neural basis of successful DBS for OCD after failed capsulotomy.

medRxiv : the preprint server for health sciences·2026
Same author

Prefrontal cortex connectivity profiles distinguish rapid from slow responders to deep brain stimulation in obsessive-compulsive disorder.

medRxiv : the preprint server for health sciences·2026
Same author

Author Correction: Plasticity and language in the anaesthetized human hippocampus.

Nature·2026
Same author

White Matter Integrity Correlates with Strength of Response to Deep Brain Stimulation in Treatment-Resistant Obsessive-Compulsive Disorder.

medRxiv : the preprint server for health sciences·2026

Related Experiment Video

Updated: Oct 27, 2025

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents
07:05

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents

Published on: September 10, 2018

6.2K

Alpha and broadband high-frequency activity track task dynamics and predict performance in controlled

Saskia Haegens1,2,3, Yagna J Pathak1, Elliot H Smith1

  • 1Department of Neurological Surgery, Columbia University Medical Center, New York, NY, USA.

Psychophysiology
|July 21, 2021
PubMed
Summary

Researchers used intracranial recordings to track brain activity during decision-making. Alpha rhythm and broadband signals together reveal how different brain areas engage and disengage, predicting reaction times with high precision.

Keywords:
decision-makingiEEGoscillation/time frequency analyses

More Related Videos

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis
10:33

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

Published on: June 20, 2012

13.0K
Performing Behavioral Tasks in Subjects with Intracranial Electrodes
12:10

Performing Behavioral Tasks in Subjects with Intracranial Electrodes

Published on: October 2, 2014

11.5K

Related Experiment Videos

Last Updated: Oct 27, 2025

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents
07:05

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents

Published on: September 10, 2018

6.2K
Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis
10:33

Correlating Behavioral Responses to fMRI Signals from Human Prefrontal Cortex: Examining Cognitive Processes Using Task Analysis

Published on: June 20, 2012

13.0K
Performing Behavioral Tasks in Subjects with Intracranial Electrodes
12:10

Performing Behavioral Tasks in Subjects with Intracranial Electrodes

Published on: October 2, 2014

11.5K

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Electrophysiology

Background:

  • Intracranial recordings offer superior temporal and spatial resolution for studying brain activity compared to non-invasive methods.
  • Broadband high-frequency activity (70-150 Hz) is linked to neuronal excitation, while alpha rhythm (8-14 Hz) is implicated in regulating neuronal population engagement.

Purpose of the Study:

  • To investigate the utility of intracranial broadband and alpha signals for single-trial tracking of task-engaged brain areas during decision-making.
  • To characterize the spatio-temporal dynamics of cortical activity during a decision-making task.

Main Methods:

  • Intracranial recordings (grid and depth electrodes) were obtained from epilepsy patients performing the Multi-Source Interference Task.
  • Analysis focused on broadband high-frequency activity and alpha rhythm power across frontotemporal, parietal, and prefrontal cortical regions.

Main Results:

  • A negative correlation between alpha power and broadband activity was observed, supporting alpha's gating role in various cortical regions.
  • Combined alpha and broadband signals effectively delineated task-engaged areas, with alpha decrease indicating engagement and broadband increase tracking specific task events.
  • Specific neuronal populations were identified that responded to stimulus presentation, decision reporting, or time-on-task, with the latter predicting reaction times.

Conclusions:

  • Alpha and broadband signals provide a powerful tool for tracking neuronal population dynamics across the cortex with high temporal and spatial detail.
  • These signals enable a fine-grained understanding of the spatio-temporal patterns underlying decision-making processes.
  • The findings highlight the potential of using these electrophysiological markers to study cognitive functions in real-time.