Addiction and neural ageing
Addiction and neural ageing

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Glossary


Glossary for SD805_2
Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

Page:  1  2  3  4  5  (Next)
  ALL

S

salivation reflex

The reaction of an animal’s salivary glands to a stimulus (measured in drops of saliva). Normally, the stimulus is the presence of food in the mouth.


satiety

A state of loss of motivation as a result of completing a session of a particular behaviour. For example, after food deprivation an animal might be given food and then achieve a state of satiety as a result of free ingestion.


schedules of reinforcement

The nature of the relationship between an animal’s behaviour and the reinforcing agent that is contingent upon it. This might be continuous reinforcement or partial reinforcement.


secondary structure

Regular structure within a polypeptide chain. There are two main types: the α-helix and the β-sheet.


secretase

A family of enzymes involved in the processing/proteolysis of APP.


self-actualisation

A term that refers to the capacity of an individual to set goals and to meet them. A capacity to obtain satisfaction in realising ambitions.


semantic memory

Memory that includes general knowledge of the world acquired through education and experience, including the use of language.


senile/neuritic plaques

Extracellular structures composed of complex and incompletely characterised molecular and cellular constituents. Amyloid β peptide, produced by proteolytic cleavage of APP, and ApoE are the major components of the plaques.


sensory neurons

Neurons that convey information to the central nervous system.

See also afferent neurons.

serotonergic

An adjective describing a neuron that synthesises, stores and releases serotonin or a synapse at which serotonin is the neurotransmitter.



Page:  1  2  3  4  5  (Next)
  ALL


Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to University-level study, we offer two introductory routes to our qualifications. You could either choose to start with an Access module, or a module which allows you to count your previous learning towards an Open University qualification. Read our guide on Where to take your learning next for more information.

Not ready for formal University study? Then browse over 1000 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus371