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Related Concept Videos

Understanding Consciousness01:23

Understanding Consciousness

Consciousness can be defined as the state of being aware of and able to think about one's existence, sensations, and surroundings. It encompasses two major components: awareness and arousal. Awareness pertains to the recognition of environmental stimuli and internal states. At the same time, arousal refers to the physiological readiness to engage with these stimuli, which varies significantly between states like sleep and wakefulness.
Sleep, a crucial state, is characterized by reduced physical...
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...
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...
Lucid Dreaming01:10

Lucid Dreaming

Lucid dreaming is a unique state of consciousness where an individual realizes they are dreaming while still in the dream. This awareness allows them to manipulate their dream environment consciously. Researchers like Stephen LaBerge have significantly contributed to the understanding of lucid dreams, highlighting that during these dreams, certain areas of the brain, such as the prefrontal cortex, that involve self-awareness and thought evaluation show increased activity.
Studies have shown...
Self-Awareness and Its Effects01:21

Self-Awareness and Its Effects

Self-awareness is a psychological state in which the individual becomes the focal point of their attention. This inward focus transforms the self into an object of contemplation and assessment, influencing how individuals perceive their actions and their alignment with personal and societal standards.Triggers and Contexts for Self-AwarenessSelf-awareness can be activated by external stimuli that make individuals visually or audibly aware of themselves, such as mirrors, cameras, or recordings.
Introspection01:29

Introspection

Introspection, long upheld as a reliable route to self-knowledge, involves examining one's thoughts, emotions, and mental processes. It underpins many psychological practices, from mindfulness meditation to psychotherapy and self-help strategies. However, empirical evidence challenges the accuracy of introspection as a means of understanding oneself.Limitations of Introspective InsightSeminal work by Nisbett and Wilson demonstrated that individuals are frequently unaware of the true causes...

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Large Volume, Behaviorally-relevant Illumination for Optogenetics in Non-human Primates
08:32

Large Volume, Behaviorally-relevant Illumination for Optogenetics in Non-human Primates

Published on: October 3, 2017

Illuminating consciousness.

Conor H Murray1, Kafui Dzirasa2,3,4, Dana Sawyer5

  • 1Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, CA, United States.

Frontiers in Psychology
|May 25, 2026
PubMed
Summary
This summary is machine-generated.

This review synthesizes historical and contemporary views on consciousness, integrating diverse evidence to propose a holistic framework. It identifies knowledge gaps and future research opportunities for understanding consciousness construction, measurement, and its role in human flourishing.

Keywords:
consciousnessneurophenomenologyontologyphilosophy of mindstructuralism

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Area of Science:

  • Neuroscience
  • Philosophy of Mind
  • Cognitive Science
  • Medical Humanities

Background:

  • Consciousness remains a profound mystery, debated across disciplines throughout history.
  • Understanding its relationship with the body and the natural world is a persistent challenge.

Purpose of the Study:

  • To review historical and current perspectives on consciousness from philosophy, science, medicine, and practice.
  • To develop a holistic framework by integrating diverse evidence and identifying knowledge gaps.
  • To propose a working model for consciousness construction, measurement, modification, and its significance for survival and flourishing.

Main Methods:

  • Comprehensive literature review integrating philosophical, scientific, medical, and practical viewpoints.
  • Synthesis of neuroscientific models, clinical applications, and contemplative methods.
  • Identification of common themes, knowledge gaps, and future research directions.

Main Results:

  • A multidisciplinary review highlighting the complexity of consciousness.
  • Identification of key areas requiring further investigation.
  • A proposed working model for understanding consciousness.

Conclusions:

  • A holistic framework for consciousness is advanced by integrating diverse perspectives.
  • Understanding consciousness is crucial for both survival and human flourishing.
  • Future research should focus on the construction, measurement, and modification of consciousness.