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Related Concept Videos

High-Level and Low-Level Awareness01:19

High-Level and Low-Level Awareness

Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
Reason and Intuition01:37

Reason and Intuition

The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the brain can only use...
Subconsciousness and No Awareness01:15

Subconsciousness and No Awareness

The concept of subconscious awareness refers to the processing of information below the level of conscious thought, which significantly influences both behaviors and decisions. It is also known as waking subconscious awareness. This complex level of cognition operates without the direct awareness of the individual, facilitating rapid and simultaneous handling of multiple information streams.
An illustrative example of subconscious processing is its role in problem-solving. Often, individuals...
Brain Waves01:23

Brain Waves

Brain waves are electrical signals generated by the neurons in the brain, which are regularly monitored to measure mental activities. Brain waves and their frequency ranges can be measured using an electroencephalogram or EEG. There are four main types of brain waves, each with distinct characteristics:
Metacognition01:26

Metacognition

Metacognition is a conscious process where individuals are aware of their cognitive and executive processes, such as planning before solving a problem or self-monitoring during reading. For instance, a writer may need help with composing a piece. The situation involves a writer who is working on a piece of writing, but while doing so, they realize that something is missing. They notice that their characters lack depth or details. This realization occurs because the writer is reflecting on their...
Altered States of Awareness01:06

Altered States of Awareness

Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
The ingestion of substances like stimulants or hallucinogens leads to chemical alterations in the brain that...

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Related Experiment Video

Updated: May 13, 2026

Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
11:02

Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network

Published on: December 28, 2010

The default network: your mind, on its own time.

Trey Hedden

    Cerebrum : the Dana Forum on Brain Science
    |March 1, 2013
    PubMed
    Summary
    This summary is machine-generated.

    The brain

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    Area of Science:

    • Neuroscience
    • Cognitive Psychology

    Background:

    • Traditional brain studies focus on task-related neural activity.
    • Emerging research investigates brain function during rest periods.
    • The default network (DN) is a key finding in resting-state brain activity.

    Purpose of the Study:

    • To explore the function of the default network during periods of inactivity.
    • To highlight the role of the default network in supporting inner cognitive processes.
    • To examine the potential of default network research in understanding neurological diseases.

    Main Methods:

    • Review of neuroimaging studies on resting-state brain activity.
    • Analysis of research identifying the default network.
    • Exploration of clinical applications of default network research.

    Main Results:

    • The default network is highly active during apparent rest.
    • This network facilitates complex internal cognitive functions.
    • Understanding the default network offers new diagnostic and therapeutic avenues for diseases like Alzheimer's.

    Conclusions:

    • The brain remains active during rest, primarily through the default network.
    • The default network is crucial for our inner mental lives.
    • Targeting the default network shows promise for future Alzheimer's disease research and treatment.