Waking Activity
Waking Activity - Related Videos
05:54
Optogenetic Manipulation of Neural Circuits for the Sleep-to-Wakefulness Transition in Mice
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2025
Source: Kodani, S., et.al. Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice. J. Vis. Exp. (2019)This video demonstrates the optogenetic manipulation of neural circuits involved in the sleep-to-wakefulness transition in mice. The procedure involves surgically implanting an optic fiber and electrodes into the brain and muscles to enable light stimulation and electrophysiological recording. By delivering light to activate light-sensitive cation...
01:24
Sleep-Wake Cycles
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2024
Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and rapid eye movement (REM). NREM Sleep NREM sleep comprises four progressive stages that seamlessly merge: Stage 1 is the...
08:08
Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory
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Cited by 8 •
2014
We present a protocol used to discover an interactive effect between sleep and cortisol on memory consolidation, particularly for negative arousing images. Specifically, the experimental design utilizes eye tracking, salivary cortisol analysis, and behavioral memory testing – methods that can be used with both healthy and clinical participants.
08:58
Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice
0 Views •
Cited by 6 •
2019
Here, we describe methods of optogenetic manipulation of particular types of neurons during monitoring of sleep/wakefulness states in mice, presenting our recent work on the bed nucleus of the stria terminalis as an example.
09:57
Quantification of Monocyte Chemotactic Activity In Vivo and Characterization of Blood Monocyte Derived Macrophages
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Cited by 7 •
2019
Here we present a protocol to quantify the chemotactic activity of blood monocytes in mouse models, to assess the effects of nutritional, pharmacological and genetic interventions on blood monocyte and to characterize the blood monocytes derived macrophages in mouse models using monocyte-chemoattractant protein-1 (MCP-1)-loaded basement membrane-derived gel plugs.
FAQs
Two regulatory forces shape waking activity: circadian timing provides a rhythmic influence linked to the daily cycle, whereas homeostatic sleep pressure builds with time awake and changes after sleep. Their interaction helps explain fluctuations in arousal and why alertness can vary across the day or during transitions between sleep and wakefulness.
Sleep quality, daily rhythms, stress, and neurological conditions can each influence waking activity, with effects linked to attention, learning, mood, and behavior. This makes waking activity useful for examining why a person may perform differently across situations or days, and for relating self-reported alertness to broader psychological and physiological patterns.
Behavioral measures show what a person does, while cognitive-performance measures indicate how effectively attention or learning-related functions operate. Self-reported alertness adds the person's experience, and physiological signals provide another window on arousal. Considering these sources together can give a broader account than relying on any single indicator of waking activity.
A practical assessment begins by selecting one or more indicators: behavior, self-reported alertness, cognitive performance, and physiological signals. Researchers can then consider these findings alongside sleep quality, daily rhythms, stress, or neurological conditions. The resulting pattern helps connect waking activity with attention, learning, mood, and behavior.
In sleep research, waking activity provides a way to relate wakefulness-related measures to sleep quality and daily rhythms. In clinical assessment, similar observations can help examine how neurological conditions affect attention, mood, or behavior. Human-performance studies can use cognitive performance and alertness to characterize functional consequences relevant to everyday activity.
Attention, learning, mood, and behavior are identified as outcomes that can vary with sleep quality, daily rhythms, stress, and neurological conditions. Studying waking activity therefore helps psychology investigate how arousal and alertness relate to mental performance and emotional or behavioral functioning, rather than treating wakefulness as an isolated state.