BIOPAC® Systems, Inc. Logo

Actigraphy

Actigraphy noninvasively measures cycles of activity and sleep (rest) over days or even weeks, typically to assess sleep disorders and other sleep-related criteria.

Use the Actigraphy Analysis licensed feature in AcqKnowledge® to record long-term accelerometer data of mobile subjects and then analyze sleep and activity patterns; correlate activity levels with GPS positioning for more detailed analysis.

General activity levels of the subject are recorded with a wireless tri-axial accelerometer (BioNomadix®, Mobita®, or BioHarness®), and the Actigraphy Analysis routine provides a general indication of Activity and Sleep patterns.

See More...

Details

This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.

AcqKnowledge software records and reports Activity and Sleep as a plotted graph and spreadsheet that can easily be exported.

actigraphy analysis seelp onset

Activity Analysis

The Activity mode analyzes data collected from the subject throughout the day. It reports on the general level of activity evident in the accelerometry data and breaks it into low, medium and high activity levels. The following activity metrics are reported:

  1. Total low activity time
  2. Waking low activity time
  3. Total high activity time
  4. Total low activity %
  5. Waking low activity %
  6. Total high activity %
  7. Total medium activity time
  8. Waking medium activity time
  9. Waking high activity time
  10. Total medium activity %
  11. Waking medium activity %
  12. Waking high activity %
Sleep Analysis

The Sleep mode uses a zero crossing algorithm that breaks data into one minute windows as described in the publication by Sadeh A, Sharkey K, et. al. The algorithm then employs a sleep onset heuristic as reported by Cole R, Kripke D, et. al. The following sleep-related metrics are reported:

  1. Sleep onset
  2. Percentage of wake
  3. Sleep end
  4. Wake after sleep onset (WASO)
  5. Total sleep period length
  6. Sleep bouts
  7. Sleep time
  8. Wake bouts
  9. Percentage of sleep
  10. Mean sleep bout
  11. Wake time
  12. Mean wake bout

Support

Application Notes

Knowledge Base

Hardware Packages   |   Actigraphy

Hardware Bundles are complete solutions for the specified application. Choose your preferred platform and bundle, then click "Request Pricing" to request an estimate, add/remove items, or complete purchase. If you have questions about specific items, click through to the product web page for details and specifications, or contact your Local Sales contact.

Wired

Wireless

Animal

Spotlight On
free BIOPAC webinar

New Scent Delivery System for Research

Researchers can now easily add an olfactory element to expand general psychophysiology studies, enrich virtual and augmented environments, or examine how scent perception affects a variety of applications. BIOPAC’s new Scent Delivery System (SDS200-SYS), connects to an MP160 Research System with AcqKnowledge, and delivers up to eight scents to participants.

You Will Learn How To:
• Add olfactory stimulation to any experiment
• Optimize setup to get the best results
• Combine different types of stimulation

LIVE WEBINAR on November 4 at 8AM PT/11AM ET

Register Now
Latest News

New Citations | Physiological Measures to Understand Stress

BIOPAC provides software and hardware that allows research teams to study physiological measures related to stress. Here are a few notable studies using BIOPAC equipment for ECG, EDA, and EEG/ERP. Moms Moderating Stress Can relaxation techniques help lower stress on both mother and fetus? Using an MP36R Data Acquisition system to record ECG and EDA, this study […]

Electrocardiography Guide Now Available

BIOPAC’s comprehensive Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines for extracting, […]

Read All
Request a Demonstration
Request a Demonstration