Psychology and chemistry term ambiguity · BEGINNER LESSON
Concentration
Concentration, in the psychology sources here, is the one-pointed and unbroken fixing of attention on a single object. The same word is also used in chemistry for the amount of a substance in a mixture or solution per volume.
What concentration is
In the psychology source, concentration means one-pointedness of the mind: attention stays unbroken, sustained, focused, and fixed on a single object such as the breath, a visualization, music, the present moment, or another daily object. The study also defines it operationally as one-pointedness of the mind that enables unbroken and sustained attention on one object. In the chemistry and metrology sources, concentration means the amount of a substance in a mixture or solution per volume, such as substance concentration, mass concentration, or number concentration.
[1] Going beyond Mindfulness: How Concentration and ... - PMC [2] Now concentrate - PMC [3] Concentration and content - PMC - NIH
How it works
For mental concentration, the key feature is that attention does not wander. The source contrasts this with an unconcentrated mind, which moves in a scattered way from idea to idea. It also links concentration with selective attention, meaning the ability to focus on one thing while ignoring others. In the chemistry sense, concentration is a measurement relationship between an amount and volume, so the same word names a physical quantity rather than a mental state.
[1] Going beyond Mindfulness: How Concentration and ... - PMC [2] Now concentrate - PMC [3] Concentration and content - PMC - NIH
What studies suggest
The psychology source reports that concentrative practice has been associated with better attentional control, mindfulness, and nonattachment, and with lower irritability, perceived stress, and psychological distress. It also says concentration may support physical and mental health by increasing parasympathetic activity, improving gas exchange in the lungs, increasing cognitive flexibility, and reducing anxiety and stress. These findings are reported from cross-sectional and longitudinal evidence, not from an experiment that can prove cause and effect.
[1] Going beyond Mindfulness: How Concentration and ... - PMC
Limitations and why the word is tricky
The mental-concentration study is non-experimental, so causality could not be established. Its samples were mostly university and community participants with little meditation experience, so results may not fully extend to experienced meditators. The authors also note that their measure covers ordinary concentration, not rarer deep absorption states. Separately, the chemistry sources show that concentration is an ambiguous word because it can refer to several kinds of amount-per-volume quantities, so the field matters when interpreting the term.
[1] Going beyond Mindfulness: How Concentration and ... - PMC [2] Now concentrate - PMC [3] Concentration and content - PMC - NIH
SEE THE IDEA
Two common meanings of concentration
Unbroken attention fixed on one object.
Helps keep focus from wandering.
Amount of a substance per volume of a mixture or solution.
Examples include mol/L, kg/L, or 1/L depending on what is counted.
Mental concentration is a pattern of attention; chemical concentration is a quantitative property of a mixture or solution.
The same English word names different scientific ideas in different fields.
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Sources and further reading
This general lesson was generated from public source material. It explains a concept; it does not interpret a private paper or provide medical advice.