levo

Health Psychology

Biological explanations of drug addiction

  • 4 things to know
  • Papers 2 and 3

Overview

Recall questions on drugs and the mesolimbic reward pathway, how alcohol, heroin and nicotine each act on GABA, glutamate, opioid and nicotinic receptors, and how neuroadaptation produces tolerance and withdrawal for each.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Key term

Why does tolerance to alcohol develop in terms of neuroadaptation?

Key term

What is the consequence of heroin inhibiting GABA interneurons for dopamine release?

Key term

Why do heroin users require increasing doses over time?

Key term

What causes withdrawal symptoms in heroin addiction?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    According to the biological explanation, how do drugs initially affect the brain to promote addiction?

    Model answer

    Drugs alter neurotransmitter activity in the brain.

  2. 2

    Which brain structure is particularly associated with dopamine release during drug use?

    Model answer

    The nucleus accumbens.

  3. 3

    What brain system is activated by drugs that contributes to the development of addiction?

    Model answer

    The mesolimbic reward pathways.

  4. 4

    How does activation of reward pathways contribute to addiction according to the biological explanation?

    Model answer

    It reinforces drug-taking behaviour, making the individual more likely to repeat drug use.

  5. 5

    How might genetic factors predispose individuals to addiction?

    Model answer

    Through inherited variations in neurotransmitter systems and metabolic enzymes that affect drug responses.

  6. 6

    Which receptor type does alcohol bind to in order to enhance inhibitory neurotransmission?

    Model answer

    GABA-A receptors

Other ways to work this

The same content, four other ways.

What is inside Levo

Six ways to work the same material.

1Closed book
2Open book
3Closed book

The 3-step method, run for you

Answer cold, learn it, then prove it stuck. Levo tracks the jump between your first attempt and your last.

Social Psychology
Cognitive Psychology
Biological Psychology
Learning Theories

Cram a whole paper in one sitting

Sort every topic into what you know and what you do not, then drill only the weak ones.

The area.
septalfrontaltemporal

Blank Blitz makes facts automatic

Rapid timed gap-fills on the terms and numbers you need to recall without thinking.

AEvery score is in the hundreds (of the order of 10² ms).
BThe mean must therefore also be in the hundreds.
C30.1 is ten times too small.

Build It gets the exam shape right

Assemble a full-mark answer from its marking points, in the order an examiner wants them.

In Rutter's study of Romanian orphans, children adopted before 6 months showed normal development.
TrueFalse

Test It catches misconceptions

Spot the fault in a statement. The traps are the mistakes students actually make.

721941163128510

Brain Breaks between sessions

Short focus games to reset attention, so the next set lands better than the last.

Every question in Health Psychology, on a schedule.

Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.

Or £46 a year, about £3.83 a month. Cancel anytime.