Motivation
Motivation is a reason for actions,
willingness, and goals. Motivation is
derived from the word motive, or a need
that requires satisfaction. These needs,
wants or desires may be acquired
through influence of culture, society,
lifestyle, or may be generally innate. An
individual's motivation may be inspired
by outside forces (extrinsic motivation)
[1]
or by themselves (intrinsic motivation).
[2]
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Motivation has been considered one of
the most important reasons to move
forward.
[3]
Motivation results from the
interaction of both conscious and
unconscious factors. Mastering
motivation to allow sustained and
deliberate practice is central to high
levels of achievement, e.g. in elite sport,
medicine, or music.
[4]
Motivation governs
choices among alternative forms of
voluntary activity.
[5]
Motivation as a desire to perform an
action is usually defined by two parts: the
directional (such as directed towards a
Neuroscience
positive stimulus or away from a
negative one) and the activated "seeking
phase" and consummatory "liking phase."
This type of motivation has
neurobiological roots in the basal ganglia
and mesolimbic (dopaminergic)
pathways. Activated "seeking" behaviour,
such as locomotor activity, is influenced
by dopaminergic drugs, and
microdialysis experiments reveal that
dopamine is released during the
anticipation of a reward.
[6]
The "wanting
behaviour" associated with a rewarding
stimulus can be increased by
microinjections of dopamine and
dopaminergic drugs in the dorsorostral
nucleus accumbens and posterior ventral
palladum. Opioid injections in this area
produce pleasure; however, outside of
these hedonic hotspots they create an
increased desire.
[7]
Furthermore,
depletion or inhibition of dopamine in
neurons of the nucleus accumbens
decrease appetitive but not
consummatory behaviour. Dopamine,
further implicated in motivation as
administration of amphetamine,
increases the break point in a
progressive ratio self-reinforcement
schedule; subjects will be willing to go to
greater lengths (e.g. press a lever more
times) to obtain a reward.
[8]
Psychological theories
Motivation is a process in which
thoughts influence behaviours. For
example, drive performance affects
thoughts, and these thoughts influence
behaviours. Each phase of the cycle
includes aspects such as attitudes,
beliefs, intentions, effort, and withdrawal.
All of these aspects affect an individuals
motivation. Most psychological theories
claim that motivation exists purely within
the individual, but socio-cultural theories
express motivation as an outcome of
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