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Related Concept Videos

Understanding Consciousness01:23

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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.
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Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
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A random variable is a single numerical value that indicates the outcome of a procedure. The concept of random variables is fundamental to the probability theory and was introduced by a Russian mathematician, Pafnuty Chebyshev, in the mid-nineteenth century.
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Fluorescence and phosphorescence are essential phenomena in fields like analytical chemistry, biological imaging, and materials science, where they detect molecular properties and visualize cellular structures. Understanding the variables that influence these luminescent behaviors is crucial for maximizing accuracy and efficiency in their applications. These variables can broadly be grouped into chemical structure, solvent properties, and external conditions, each playing a distinct role in...
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Graphs of Equations in Two Variables01:30

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An equation with two variables, typically written in the form y = f(x) or Ax + By = C, describes a relationship between quantities represented by x and y. Each solution to such an equation is an ordered pair (x, y) that satisfies the equation when substituted. These pairs can be represented graphically to understand the variables' relationship visually.A common technique for constructing the graph of a two-variable equation is to create a value table. Begin by choosing several values for the...
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When an object is acted upon by a variable force, the amount of work done and the change in energy of the object can be more complex to calculate compared to when a constant force is applied. Work is the product of force and displacement, while energy is the capacity of a system to do work. When a constant force is applied to an object, the work done can be calculated as the product of the force and the distance moved in the direction of the force. However, when a variable force is applied, the...
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Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome
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On variability & human consciousness.

Brian B Boutwell1,2

  • 1Saint Louis University, College for Public Health and Social Justice, Criminology & Criminal Justice, Department of Epidemiology (Secondary Appointment), United States.

Heliyon
|November 13, 2018
PubMed
Summary
This summary is machine-generated.

Consciousness arises from physical brain processes, not an immaterial substance. Individual differences in brain structure, influenced by genes and environment, likely contribute to variations in conscious experience.

Keywords:
Psychology

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Area of Science:

  • Cognitive Neuroscience
  • Philosophy of Mind
  • Neuroscience

Background:

  • Consciousness is a central topic across multiple academic disciplines.
  • Debates persist regarding the origins of conscious experience.
  • Advanced neuroimaging techniques are increasingly used to study brain correlates of consciousness.

Purpose of the Study:

  • To explore the physical basis of consciousness.
  • To investigate how individual variations in brain structure may influence consciousness.
  • To understand the evolutionary implications of consciousness variability.

Main Methods:

  • Review of current literature in philosophy and cognitive neuroscience.
  • Application of advanced neuroimaging techniques to identify brain regions associated with subjective experience.
  • Theoretical exploration of genetic and environmental influences on brain structure and consciousness.

Main Results:

  • General agreement exists that consciousness is a product of physical brain substrates.
  • Individual variations in brain structure, shaped by genetics and environment, are proposed to underlie variations in consciousness.
  • Understanding these variations may offer insights into the evolution of consciousness.

Conclusions:

  • Consciousness is rooted in the physical functioning of the brain.
  • Individual differences in brain structure are a likely source of variation in conscious experience.
  • Studying variability in consciousness is crucial for understanding its evolution and ongoing selection pressures.