Biological psychology
| English | 中文 | Pinyin |
|---|---|---|
| sensation/senˈseɪʃn/ | 感觉 | gǎn jué |
| response criterion/rɪˈspɒns kraɪˈtɪərɪən/ | 反应标准 | fǎn yìng biāo zhǔn |
A decision before an answer
- The same faint sound can be noticed in a quiet room and missed in a busy one. Detection depends on more than the stimulus.
- Your goal: Distinguish sensation, perception and psychophysics.
Read the relationship
- Sensation concerns reception of stimulation; perception concerns interpretation. They interact but are not interchangeable.
- Relate neural communication and brain systems to behaviour.
Reporting a sound when no sound was presented is a:
It is a positive response on a noise-only trial.
Use the defining rule
- Signal detection separates sensitivity from the criterion for saying yes. Expectations can change the response criterion.
- Explain physiological bases of sleep, motivation and emotion.
A neuron sends an electrical signal along its:
Axons conduct action potentials toward terminals.
Check the conditions
- Neurons communicate through electrical signals and synapses. A brain region’s involvement does not establish that it acts alone.
- Explain physiological bases of sleep, motivation and emotion.
A person expecting an alarm reports more faint sounds as alarms. Hits may rise, but false alarms may also rise. This can reflect a more liberal response criterion rather than better sensory sensitivity.
Interpreting sensory information is ____.
It concerns meaning or organisation of sensory input.
Apply the task format
- Lesion and imaging studies give different evidence. Consider confounds and the limits of inferring causes from associations.
- Explain physiological bases of sleep, motivation and emotion.
A brain image showing activity during a task is not proof that the region alone causes the behaviour.
Which answer fits this case?
Distinguish sensation, perception and psychophysics
More hits always prove better sensitivity.
Hits and false alarms both matter; criterion can shift.
Keep the distinctions
- sensation 感觉 — Reception of sensory stimulation.
- response criterion 反应标准 — The threshold for reporting that a signal is present.
- Distinguish sensation, perception and psychophysics.
- Relate neural communication and brain systems to behaviour.
- Explain physiological bases of sleep, motivation and emotion.
Match each term with its precise meaning in this lesson.
Keep the distinctions stated in the teaching example.
Put this lesson’s reasoning or event sequence in order.
The order follows the stated process; check each stage before the next.