• The philosophy of technology is a philosophical
field dedicated to studying the nature of technology and its social
• Technological evolution is the name of a science
and technology studies theory describing technology development,
developed by Czech philosopher Radovan Richta
• The emergence of technology, made possible by the
development of the rational faculty, paved the way for the first stage:
the tool. A tool provides a mechanical advantage in accomplishing a
physical task, and must be powered by human or animal effort.
• Electroencephalography (EEG) is the measurement of
electrical activity produced by the brain as recorded from electrodes
placed on the scalp.
• Scalp EEG measures summated activity of
post-synaptic currents. An action potential in a pre-synaptic axon
causes the release of neurotransmitter into the synapse.
• Neurons (IPA: /njˈɒɹɒns/, also known as neurones
and nerve cells) are electrically excitable cells in the nervous system
that process and transmit information. Neurons are the core components
of the brain, and spinal cord in vertebrates and ventral nerve cord in
invertebrates, and peripheral nerves.
• Dendrites (from Greek dendron, “tree”) are the
branched projections of a neuron that act to conduct the electrical
stimulation received from other neural cells to the cell body, or soma,
of the neuron from which the dendrites project.
• In neurophysiology, an action potential (also known
as a nerve impulse or spike) is a pulse-like wave of voltage that
travels along several types of cell membranes. The best-understood
example is generated on the membrane of the axon of a neuron, but also
appears in other types of excitable cells, such as cardiac muscle
cells, and even plant cells.
• In cell biology, molecular biology and related
fields, the word extracellular (or sometimes extracellular space) means
"outside the cell". This space is usually taken to be outside the
plasma membranes, and occupied by fluid. The term is used in contrast
to intracellular (inside the cell)
• An event-related potential (ERP) is any stereotyped
electrophysiological response to an internal or external stimulus. More
simply, it is any measured brain response that is directly the result
of a thought or perception.