Mix & Match.

The library works like building blocks made of vector arms, legs, and emotions. You can mix these elements to create different Peeps.

Combine clothing and hairstyles to add flair.
Change emotion with different facial expressions.
Set the scene with different poses—including standing and sitting

Download Library

Creations for all occasions.

You can use Open Peeps in product illustration, marketing imagery, comics, product states, user flows, personas, storyboarding, invitations for your quinceañera...or anything else not on this list.

The library is in the public domain under the CC0 License. This means you can copy, modify, distribute, remix, burn, and use the work, even for commercial purposes, without asking permission.

Download Library

Report: EEG and Sleep Physiology

1. Introduction

The electroencephalogram (EEG) is a fundamental tool in sleep medicine. It records the brain’s electrical activity non-invasively, allowing researchers and clinicians to characterize the different stages of sleep. This report outlines the physiological basis of sleep, the distinct EEG patterns associated with each stage, and the clinical relevance of these findings.

Slide 20 — Case Studies (2 brief cases)

Case A: Obstructive sleep apnea — fragmented sleep, reduced SWS, EEG arousals (show-mini traces)
Case B: Narcolepsy type 1 — SOREMPs (sleep-onset REM periods) on MSLT/PSG

Image: EEG monitoring in a sleep clinic

Sawtooth waves: REM-associated transient 2–6 Hz patterns.

Phasic REM bursts: transient increases in EEG and EMG activity.

Other transients: arousals (brief return to wake-like EEG), cyclic alternating pattern (CAP) in NREM reflecting sleep instability.

Slide 2: Introduction to the Electroencephalogram (EEG)

Definition:

Slide 20: Artifacts to Recognize

EEG: sleep spindles and K-complexes on a background of mixed-frequency, generally lower amplitude.
Sleep spindles: 11–16 Hz, typically maximal over central leads; generated by thalamic reticular nucleus interactions.
K-complexes: single large biphasic waves (sharp negative deflection followed by positive) maximal frontocentrally; may reflect cortical response to stimuli and gating of sensory input.

Grab and go!

Get started with these ready-to-download Peeps.

PNG SVG

Get All Combinations

Eeg And Sleep Physiology Ppt |link| May 2026

Report: EEG and Sleep Physiology

1. Introduction

Slide 20 — Case Studies (2 brief cases)

Case A: Obstructive sleep apnea — fragmented sleep, reduced SWS, EEG arousals (show-mini traces)
Case B: Narcolepsy type 1 — SOREMPs (sleep-onset REM periods) on MSLT/PSG

Image: EEG monitoring in a sleep clinic

Sawtooth waves: REM-associated transient 2–6 Hz patterns.

Phasic REM bursts: transient increases in EEG and EMG activity.

Other transients: arousals (brief return to wake-like EEG), cyclic alternating pattern (CAP) in NREM reflecting sleep instability.

Slide 2: Introduction to the Electroencephalogram (EEG)

Definition:

Slide 20: Artifacts to Recognize

EEG: sleep spindles and K-complexes on a background of mixed-frequency, generally lower amplitude.
Sleep spindles: 11–16 Hz, typically maximal over central leads; generated by thalamic reticular nucleus interactions.
K-complexes: single large biphasic waves (sharp negative deflection followed by positive) maximal frontocentrally; may reflect cortical response to stimuli and gating of sensory input.

Start creating.

Download the illustration library and create your own Peeps!

Use with Blush Download

Open Peeps by Pablo Stanley. Part of the Open Doodles project.
Free for commercial and personal use under CC0 License.
Oh, btw, you should check out Lummi for more free illustrations.

Eeg And Sleep Physiology Ppt |link| May 2026

A hand-drawn illustration library.

Mix & Match.

Creations for all occasions.

Report: EEG and Sleep Physiology

1. Introduction

Slide 20 — Case Studies (2 brief cases)

Slide 2: Introduction to the Electroencephalogram (EEG)

Grab and go!

Eeg And Sleep Physiology Ppt |link| May 2026

Report: EEG and Sleep Physiology

1. Introduction

Slide 20 — Case Studies (2 brief cases)

Slide 2: Introduction to the Electroencephalogram (EEG)

Start creating.