# Sleep, hunger and the circumstances of motivation

Start with Sleep 3, whose official description concerns rhythms and sleep, and the accompanying NIGMS reading; then compare emotion and eating. Sleep 1/2 are omitted from the required sequence because their descriptions discuss consciousness and appear inconsistent with their titles. The route is organised around regulation, cues and measurement, ending with food access so that an explanation of a choice remains connected to its circumstances.

1. [Sleep 3](https://nptel.ac.in/courses/109104108)
   Use the lesson whose actual publisher description names biological rhythms, sleep and polysomnography. The API title matches; Sleep 1/2’s inconsistent descriptions are not used to infer content.
   Task: Read NIGMS first, then write separate questions about sleep timing, measurement and mechanism. Mark any lecture claim that the reading does not establish.

2. [Lecture 15: Emotion & Motivation](https://ocw.mit.edu/courses/9-00sc-introduction-to-psychology-fall-2011/resources/lecture-15-emotion-and-motivation/)
   Introduce a vocabulary for affect and motivation before considering food.
   Task: Distinguish pleasantness from activation in two invented examples; do not treat either as a complete measure of hunger.

3. [Lecture 5 - Biology, Nutrition and Health III: The Psychology of Taste and Addiction](https://oyc.yale.edu/psychology/psyc-123/lecture-5)
   Move into a concrete biological and behavioural research setting.
   Task: Write one question about taste, one about eating behaviour and one about body weight, noting that they are different outcomes.

4. [Lecture 3 - Biology, Nutrition and Health I: What We Eat](https://oyc.yale.edu/psychology/psyc-123/lecture-3)
   Check the measurement problem before interpreting models.
   Task: Compare what an intake recollection, a laboratory choice and an availability record could each establish.

5. [Lecture 6 - Culture and the Remarkable Plasticity of Eating (Presentation by Ashley Gearhardt)](https://oyc.yale.edu/psychology/psyc-123/lecture-6)
   Examine an addiction-model perspective as a testable account.
   Task: State one observation the model would need to explain and an alternative account to distinguish; do not diagnose a person.

6. [Lecture 15 - Economics, Nutrition and Health: Subsidies, Food Deserts and More](https://oyc.yale.edu/psychology/psyc-123/lecture-15)
   End with access and economics so that internal-state explanations are not isolated from available options.
   Task: Design a hypothetical comparison separating stated preference from price and availability. Identify the causal uncertainty that remains.

Original route: Evidence Press, CC BY 4.0. Linked teaching material retains its own rights. No videos or YouTube API payloads are included.