To send content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about sending content to .
To send content items to your Kindle, first ensure firstname.lastname@example.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about sending to your Kindle.
Note you can select to send to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Motivation implies activation of the organism by external or internal stimuli resulting in goal-directed behaviors. Loss of motivation constitutes the core symptom of apathy, a syndrome frequently found among patients with acute or chronic neurological conditions such as stroke, traumatic brain injury, and dementia. The mechanism of motivated behavior is based on neural structures that attach salience and valence to a given stimulus, and activate and direct an appropriate behavior in response to that stimulus. Dopamine (DA) is considered to play a central role in the mechanism of motivation and regulation of effort-related processes. The classical studies linking DA to motivation were based on stereotaxic injections of neurotoxin into the afferent projections of the mesolimbic and mesocortical pathways, which produced severe aphagia and adipsia. The nucleus accumbens seems to mediate the primary motivational characteristics of feeding and reproductive behavior as well as reward-motivated behaviors.
Email your librarian or administrator to recommend adding this to your organisation's collection.