IELTS Reading — Stage 3 (8): What Memory Loses, and What It Keeps
Full passage, questions, and deep linguistic analysis in English.
READING PASSAGE
What Memory Loses, and What It Keeps
A. The popular image of ageing memory is bleak: names forgotten, keys misplaced, a sentence repeated three times without recognition. But the actual science of cognitive ageing tells a more nuanced story. Some forms of memory do decline steadily with age, while others remain stable well into the seventh and eighth decades. A growing body of research suggests that the brain of an older adult is not simply a deteriorating version of a younger one — it is a different machine, with strengths and weaknesses that reflect decades of experience.
B. The clearest decline is in episodic memory — the ability to recall specific events, tied to a time and place. Remembering where you parked the car yesterday, what you ate for dinner on Tuesday, or the name of a person introduced two minutes ago all depend on episodic memory, and all show measurable decline from the age of about thirty. The neurological basis is well understood: the hippocampus, a seahorse-shaped structure deep in the temporal lobe, shrinks slightly with age, and its connections to other brain regions weaken. This is not pathology; it is the normal trajectory.
C. What does not decline, and in some cases improves, is crystallised intelligence — the accumulated store of facts, vocabulary, and practical knowledge built over a lifetime. A seventy-year-old's vocabulary is typically larger than that of a twenty-year-old. Their ability to navigate familiar social situations, to resolve disputes, and to draw on decades of professional experience often outperforms their younger colleagues. The distinction was formalised in the 1960s by the psychologist Raymond Cattell, who separated crystallised intelligence (what you know) from fluid intelligence (how fast you reason with new information). Fluid peaks in early adulthood; crystallised keeps growing.
D. The practical implications extend well beyond the laboratory. Older adults who are told they will forget things actually perform worse on memory tests — a phenomenon known as stereotype threat. Conversely, older adults who maintain social connections, exercise regularly, and continue learning new material show significantly slower cognitive decline than their isolated, sedentary peers. The message is not that lifestyle choices can prevent dementia, which has biological causes that no amount of crossword puzzles can reverse. It is that the gap between "normal ageing" and "pathological decline" is wider than once believed, and much of it is modifiable.
E. The most surprising recent finding concerns wisdom itself. Researchers who study decision-making in older adults have found that they are less likely than younger people to make impulsive financial choices, less prone to regret, and more likely to weigh long-term consequences over immediate gains. Some of this is explained by emotional regulation: older adults, on average, experience fewer negative emotions and recover from setbacks more quickly. Some of it is simply accumulated judgement. The combination produces what researchers call "pragmatic intelligence" — the ability to make sound decisions in the messy, context-dependent real world.
F. None of this romanticises ageing. The losses are real, and for those who develop dementia, they are devastating. But the blanket assumption that old age means cognitive decline is increasingly difficult to defend. The ageing brain, it turns out, trades speed for wisdom, raw processing power for accumulated judgement. Whether that trade is a fair one may depend on what you value. What is clear is that the old narrative — decline, decay, dependency — no longer matches the data.
QUESTIONS
Questions 1–4: Choosing Headings
Choose the correct heading for paragraphs B, C, D, and E.
| i. | What gets better with age |
| ii. | The memory system that declines |
| iii. | Why old people are slower |
| iv. | How lifestyle affects cognitive decline |
| v. | Dementia prevention through crossword puzzles |
| vi. | Why older adults make better long-term decisions |
| vii. | The history of intelligence testing |
1. Paragraph B ____ 2. Paragraph C ____ 3. Paragraph D ____ 4. Paragraph E ____
Questions 5–9: YES / NO / NOT GIVEN
5. Episodic memory begins to decline around the age of thirty.
6. Hippocampal shrinkage is a sign of disease.
7. Vocabulary typically grows with age.
8. Crossword puzzles have been proven to prevent dementia.
9. Older adults experience more negative emotions than younger adults.
Questions 10–13: Sentence Completion (NO MORE THAN TWO WORDS)
10. Crystallised intelligence refers to accumulated knowledge and ________.
11. When older adults are told they will forget, they perform worse — an effect called ________ threat.
12. Lifestyle choices can widen or narrow the gap between normal ageing and ________ decline.
13. Older adults trade raw processing speed for accumulated ________.
ANSWER KEY
| Q | Answer | Q | Answer |
|---|---|---|---|
| 1 | ii | 8 | NO |
| 2 | i | 9 | NO |
| 3 | iv | 10 | vocabulary |
| 4 | vi | 11 | stereotype |
| 5 | YES | 12 | pathological |
| 6 | NO | 13 | judgement |
| 7 | YES |
DEEP LINGUISTIC ANALYSIS
A. Sentence Architecture
Paragraph A, last sentence:
...the brain of an older adult is not simply a deteriorating version of a younger one — it is a different machine, with strengths and weaknesses that reflect decades of experience.
- Not simply... — the writer rejects the oversimplified view.
- The dash introduces the corrected claim: it is not a worse version but a different one.
- Deteriorating carries a negative judgment that the writer is pushing back against.
Paragraph D, key sentence:
The message is not that lifestyle choices can prevent dementia... It is that the gap... is wider than once believed, and much of it is modifiable.
- Not... It is that... — classic correction structure. The first clause states what the message is not; the second states what it is.
- Modifiable = changeable. This is the paragraph's key word.
B. Vocabulary in Depth
episodic memory (B) = memory for specific events, not general facts.
crystallised intelligence (C) = accumulated knowledge. Opposite of fluid intelligence (raw reasoning speed).
stereotype threat (D, Q11) = performing worse because you believe a negative stereotype about your group.
pragmatic intelligence (E) = practical, context-aware judgement.
romanticises (F) = makes something sound better than it is. The writer is not saying ageing is wonderful — just that it's not all decline.
C. Why the Tricky Answers Are Tricky
Q6: NO. The text says hippocampal shrinkage is "not pathology; it is the normal trajectory." The question says it is "a sign of disease." Direct contradiction.
Q8: NO. The text says "no amount of crossword puzzles can reverse" dementia. The question says they "have been proven to prevent" it. Contradiction.
Q9: NO. Paragraph E says older adults "experience fewer negative emotions." The question says they experience more. Contradiction.
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