📚 Year 7 Cambridge Psychology: Core Knowledge Points Review | Year 7 剑桥心理学：核心知识点梳理
Welcome to your Year 7 Cambridge Psychology journey! This article brings together the essential knowledge points you need to understand the basics of human mind and behaviour. We will explore what psychology is, how we sense and perceive the world, the ways we learn, how memory works, why we conform in groups, the nature of emotions, the methods psychologists use, and the ethical rules that protect participants. Each section is designed to help you revise core concepts clearly and confidently.
欢迎开启 Year 7 剑桥心理学的学习之旅！本文梳理了最核心的知识点，帮助你理解人类心理与行为的基础。我们将探索什么是心理学、我们如何感觉和知觉世界、学习的方式、记忆的运作、群体中的从众现象、情绪的本质、心理学家使用的研究方法以及保护参与者的伦理守则。每一节都旨在帮助你清晰、自信地复习核心概念。
1. What is Psychology? | 什么是心理学？
Psychology is the scientific study of mind and behaviour. The word comes from the Greek ‘psyche’ (soul) and ‘logos’ (study). Psychologists use systematic observations, experiments, and measurements to understand how people think, feel, and act. Unlike everyday opinions, psychological claims are tested with evidence.
心理学是对心理和行为的科学研究。这个词源自希腊语 ‘psyche’（灵魂）和 ‘logos’（研究）。心理学家运用系统的观察、实验和测量来理解人是如何思考、感受和行动的。与日常观点不同，心理学的主张都经过证据检验。
There are several key perspectives in psychology: the biological approach looks at brain chemistry and genetics; the cognitive approach studies mental processes like memory and problem-solving; the behavioural approach focuses on observable behaviours shaped by the environment; and the sociocultural perspective examines how social context and cultural norms influence us.
心理学中有几种关键视角：生物学取向关注大脑化学和遗传；认知取向研究记忆和问题解决等心理过程；行为主义取向聚焦于由环境塑造的可见行为；社会文化视角则考察社会背景和文化规范如何影响我们。
In Year 7, you start to think like a psychologist—asking questions such as: Why do I remember some things and forget others? How do my friends affect my decisions? These questions show that psychology connects directly to your everyday life.
在 Year 7，你开始像心理学家一样思考——提出如下问题：为什么我会记住一些事情而忘记另一些？我的朋友们如何影响我的决定？这些问题表明，心理学与你的日常生活直接相关。
2. Sensation and Perception | 感觉与知觉
Sensation is the process by which our sensory receptors detect physical energy from the environment—light waves, sound vibrations, chemical molecules—and convert it into neural signals. Perception is the active process of organising and interpreting these signals to give them meaning. Sensation is detection; perception is construction.
感觉是我们的感受器探测环境中物理能量（光波、声波、化学分子）并将其转化为神经信号的过程。知觉是对这些信号进行组织和解释、赋予其意义的主动过程。感觉是探测；知觉是构建。
Our five main senses—vision, hearing, touch, taste, and smell—work with specialised cells. For example, rods and cones in the retina detect light, while hair cells in the cochlea respond to sound. Yet the same sensory input can lead to different perceptions. That is why optical illusions, such as the Müller-Lyer illusion where two lines of equal length appear different because of arrow-like tails, are so powerful: they reveal how your brain uses past experience and assumptions to interpret what you see.
我们的五种主要感觉——视觉、听觉、触觉、味觉和嗅觉——与特化细胞共同工作。例如，视网膜中的视杆细胞和视锥细胞探测光线，耳蜗中的毛细胞对声音做出反应。然而，相同的感觉输入可以导致不同的知觉。这就是视错觉如此有力的原因，如缪勒-莱耶错觉：两条等长的线因箭头状的尾巴而看起来长度不同，它揭示了大脑如何使用过去经验和假设来解释所见之物。
Psychologists love studying illusions because they teach us about perceptual errors and the brain’s shortcuts, called heuristics. In Year 7, you learn that perception is not a passive recording of the world; it is an active, interpretive process that can sometimes be tricked.
心理学家热衷于研究错觉，因为它们教给我们关于知觉错误和大脑捷径（称为启发式）的知识。在 Year 7，你要认识到知觉不是对世界的被动记录；它是一个主动的解释过程，有时也会被欺骗。
3. Learning: Classical and Operant Conditioning | 学习：经典条件反射与操作性条件反射
Learning is a relatively permanent change in behaviour due to experience. Two fundamental forms of learning are classical conditioning and operant conditioning. Both are at the heart of the behavioural perspective.
学习是由于经验而产生的相对持久的行为变化。两种基本的学习形式是经典条件反射和操作性条件反射，它们都是行为主义视角的核心。
Classical conditioning was discovered by Ivan Pavlov. He noticed that dogs naturally salivate (unconditioned response) to food (unconditioned stimulus). By repeatedly ringing a bell (neutral stimulus) just before presenting food, the dogs soon began to salivate at the sound of the bell alone. The bell became a conditioned stimulus and salivation a conditioned response. Key terms: acquisition, extinction (when the conditioned response weakens), and spontaneous recovery (the sudden reappearance of an extinguished response).
经典条件反射由伊万·巴甫洛夫发现。他注意到狗自然会对食物（无条件刺激）分泌唾液（无条件反应）。通过反复在提供食物前摇铃（中性刺激），狗很快就开始仅仅听到铃声就分泌唾液。铃声变成了条件刺激，唾液分泌变成了条件反应。关键术语：习得、消退（条件反应减弱）和自发恢复（已消退的反应突然再次出现）。
Operant conditioning, developed by B.F. Skinner, is learning through consequences. Skinner placed rats in a ‘Skinner box’ and found they learned to press a lever for a food reward (positive reinforcement). Reinforcement increases the likelihood of a behaviour; punishment decreases it. Positive reinforcement adds something pleasant (praise, money), while negative reinforcement removes something unpleasant (a loud noise stops when a lever is pressed). Punishment can be positive (adding a scolding) or negative (removing a privilege).
操作性条件反射由 B.F. 斯金纳发展，是通过后果进行学习。斯金纳将大鼠放入“斯金纳箱”，发现它们学会按压杠杆以获得食物奖励（正强化）。强化增加行为发生的可能性；惩罚则减少它。正强化是添加令人愉悦的事物（表扬、金钱），负强化是移除不愉快的事物（按压杠杆时噪音停止）。惩罚可以是正惩罚（增加斥责）或负惩罚（取消特权）。
Year 7 students explore real-world examples: a child saying ‘please’ to get a treat (positive reinforcement) or doing homework to avoid losing screen time (negative reinforcement). These simple models help explain many everyday habits.
Year 7 学生探索现实中的实例：孩子说“请”以获得零食（正强化），或者为了不被扣减屏幕时间而做作业（负强化）。这些简单模型有助于解释许多日常习惯。
4. Memory: Encoding, Storage, and Retrieval | 记忆：编码、储存与提取
Memory is often described as the process of taking in information (encoding), keeping it over time (storage), and getting it back out when needed (retrieval). The most famous model for Year 7 is the multi-store model, which divides memory into three stores: sensory memory, short-term memory (STM), and long-term memory (LTM).
记忆通常被描述为将信息纳入（编码）、随时间保持（储存）和在需要时提取出来的过程。Year 7 最著名的模型是多重储存模型，它将记忆分为三类储存库：感觉记忆、短时记忆（STM）和长时记忆（LTM）。
Sensory memory holds a large amount of information for a very brief time—less than a second for visual icons and a few seconds for auditory echoes. Only information we pay attention to passes on to short-term memory. STM has a limited capacity of about 7±2 items and lasts around 15–30 seconds without rehearsal. Maintenance rehearsal (simple repetition) can keep information in STM and help transfer it to long-term memory.
感觉记忆在极短时间内保存大量信息——视觉图像不足一秒，听觉回声数秒。只有我们加以注意的信息才会进入短时记忆。STM 的容量有限，约为 7±2 个项目，不经复述只能保持约 15–30 秒。维持性复述（简单重复）可以使信息保持在 STM 中，并有助于将其转入长时记忆。
Long-term memory is essentially unlimited and can store information for a lifetime. It includes episodic memories (personal events), semantic memories (facts and knowledge), and procedural memories (skills like riding a bike). Retrieving LTM can be easier with cues and context—a phenomenon called context-dependent memory, where you recall better in the same environment where you learned the information.
长时记忆几乎是无限的，可以终生储存信息。它包括情节记忆（个人事件）、语义记忆（事实和知识）和程序性记忆（如骑车的技能）。在提示和情境的帮助下，提取 LTM 会更容易——这种现象称为情境依赖记忆，即在信息学习时的同一环境中回忆效果更好。
Forgetting can occur because of decay (memory traces fading over time), interference (new or old information disrupts retrieval), or retrieval failure (the information is available but not accessible). Understanding these processes helps Year 7 students develop revision strategies such as regular rehearsal and the use of mind maps.
遗忘可能是因为衰退（记忆痕迹随时间消逝）、干扰（新或旧信息阻碍提取）或提取失败（信息存在但无法访问）。理解这些过程有助于 Year 7 学生制定复习策略，如定期复述和使用思维导图。
5. Social Influence: Conformity and Obedience | 社会影响：从众与服从
Social influence is the effect that other people have on our thoughts, feelings, and actions. Two major types are conformity and obedience. They help explain why we sometimes change our behaviour to fit in or follow orders, even when those actions conflict with our own beliefs.
社会影响是他人对我们的思想、情感和行为产生的作用。两种主要类型是从众和服从。它们有助于解释为什么我们有时会改变自己的行为以融入群体或遵从命令，即使这些行为与自己的信念相悖。
Conformity is adjusting one’s behaviour or thinking to match a group standard. Solomon Asch’s classic line-judgement experiment (simplified for Year 7) showed that people often gave an obviously wrong answer just because everyone else in the group did. The desire to be liked (normative influence) and the belief that the group knows better (informational influence) are key reasons for conformity.
从众是调整自己的行为或想法以符合群体标准。所罗门·阿希的经典线条判断实验（为 Year 7 简化）表明，仅仅因为组内其他人都给出了明显错误的答案，人们也常常跟着犯错。希望被喜欢（规范影响）和相信群体更了解的信念（信息影响）是从众的关键原因。
Obedience involves following direct commands, usually from an authority figure. Stanley Milgram’s famous experiment, ethically controversial but conceptually important, demonstrated how ordinary people could deliver what they believed were painful electric shocks to a learner simply because the experimenter told them to continue. The presence of a legitimate authority, the gradual nature of the demands, and the feeling of being ‘just following orders’ all weakened personal responsibility.
服从是指遵从直接命令，通常来自权威人物。斯坦利·米尔格拉姆的著名实验在伦理上虽有争议但在概念上非常重要，它展示了普通人仅仅因为实验者要求他们继续，就能向学习者施以他们相信是痛苦的电击。合法权威的在场、要求逐步升级以及“只是服从命令”的感觉都削弱了个人责任感。
In Year 7, you discuss how these forces appear in school life: the pressure to wear certain brands, to laugh at a joke you don’t find funny, or to follow a teacher’s instruction without question. Recognising these influences is the first step toward making independent, thoughtful decisions.
在 Year 7，你讨论这些力量在校园生活中如何体现：穿着特定品牌的压力、附和你觉得并不好笑的笑话、或不加疑问地听从老师的指令。认识到这些影响是做出独立、深思熟虑决定的第一步。
6. Emotion and Motivation | 情绪与动机
Emotions are complex psychological states that involve subjective feelings, physiological arousal, and expressive behaviours. Psychologists often identify a set of basic emotions that are universal across cultures: happiness, sadness, fear, anger, surprise, and disgust. These emotions help us respond quickly to important situations—fear triggers escape, anger prepares us to face a challenge, and happiness reinforces behaviours that are good for us.
情绪是包含主观感受、生理唤醒和表达行为的复杂心理状态。心理学家通常识别出一组跨文化普适的基本情绪：快乐、悲伤、恐惧、愤怒、惊讶和厌恶。这些情绪帮助我们快速应对重要情境——恐惧触发逃跑，愤怒让我们准备面对挑战，快乐强化对我们有益的行为。
Motivation is the need or desire that energises and directs behaviour. A simple but powerful framework is Abraham Maslow’s hierarchy of needs. At the base are physiological needs (food, water, sleep). Once these are met, safety needs become important, then belongingness and love, then esteem (achievement, respect). At the top is self-actualisation—the desire to become the best one can be. According to Maslow, we must largely satisfy lower needs before we can be driven by higher ones.
动机是激发和引导行为的需要或欲望。一个简单但强大的框架是亚伯拉罕·马斯洛的需求层次。最底层是生理需求（食物、水、睡眠）。满足这些后，安全需求变得重要，然后是归属与爱，再是尊重（成就、尊严）。最顶层是自我实现——成为最好的自己的愿望。马斯洛认为，较低层次的需求必须在较大程度上得到满足后，我们才会被更高层次的需求所激励。
Year 7 students learn to connect these ideas to their own experience: why hunger makes it hard to concentrate in class (physiological need), why friendship problems can feel overwhelming (belongingness), and why mastering a new skill brings genuine satisfaction (esteem and self-actualisation). Emotion and motivation are the fuel behind much of our daily behaviour.
Year 7 学生学会将这些概念与自身经历联系起来：为什么饥饿使人难以在课堂上集中注意力（生理需求），为什么友谊问题会让人感到难以承受（归属感），以及为什么掌握一项新技能能带来真正的满足感（尊重与自我实现）。情绪和动机是我们许多日常行为背后的燃料。
7. Research Methods in Psychology | 心理学研究方法
Psychology is a science, so psychologists use a variety of research methods to collect and analyse data. At the Year 7 level, you are introduced to three main methods: observations, questionnaires (surveys), and experiments. Each has strengths and weaknesses.
心理学是一门科学，因此心理学家使用多种研究方法来收集和分析数据。在 Year 7 阶段，你会初步了解三种主要方法：观察法、问卷法（调查法）和实验法。每种方法都有其优点和缺点。
Observations involve watching and recording behaviour in a natural setting (naturalistic observation) or in a controlled environment. They produce rich, detailed information but can be influenced by observer bias—the researcher’s expectations may affect what they notice. Questionnaires ask a set of questions on topics like attitudes, moods, or habits. They can gather data from many people quickly and cheaply, but answers may not be completely honest due to social desirability bias.
观察法包括在自然情境（自然观察）或受控环境中观察并记录行为。它们能产生丰富、详细的信息，但可能受到观察者偏差的影响——研究者的期望可能影响他们注意到什么。问卷法询问一系列关于态度、情绪或习惯的问题。它能快速、低成本地从许多人那里收集数据，但由于社会赞许性偏差，答案可能不完全诚实。
Experiments are the only method that can establish cause-and-effect relationships. In a simple experiment, a researcher manipulates one variable (independent variable, IV) and measures its effect on another variable (dependent variable, DV), while keeping all other conditions constant. Ideally, participants are randomly assigned to either an experimental group (which receives the treatment) or a control group (which does not). This allows the researcher to conclude that changes in the DV are due to the IV and not to chance or extraneous factors.
实验法是唯一能确立因果关系的方法。在一个简单的实验中，研究者操纵一个变量（自变量，IV），并测量它对另一个变量（因变量，DV）的影响，同时保持其他所有条件恒定。理想情况下，参与者被随机分配到接受处理的实验组或不接受处理的对照组。这使得研究者可以得出 DV 的变化是由于 IV 所致，而非机遇或无关因素的结论。
Here is a quick comparison of the three methods:
以下是这三种方法的简要比较：
| Method | Strength | Weakness |
|---|---|---|
| Observation | Realistic, detailed data | Observer bias, cannot infer cause |
| Questionnaire | Large sample, quick | Biased answers, low depth |
| Experiment | Shows cause-effect | Artificial setting, ethical limits |
| 方法 | 优势 | 劣势 |
|---|---|---|
| 观察法 | 真实、详细的数据 | 观察者偏差，不能推断因果 |
| 问卷法 | 大样本，快速 | 答案偏差，深度不足 |
| 实验法 | 显示因果关系 | 情境人为化，伦理限制 |
Understanding these methods allows you to evaluate psychological claims critically and recognise that science is not just a collection of facts but a way of asking and answering questions.
理解这些方法能让你批判性地评估心理学主张，并认识到科学不只是一堆事实，而是一种提问和解答问题的方式。
8. Ethical Considerations | 伦理考量
When psychologists conduct research with human or animal participants, they must follow strict ethical guidelines to protect the welfare and dignity of those involved. Ethics are the moral principles that guide right and wrong conduct. For Year 7, five key ethical principles are emphasized: informed consent, right to withdraw, confidentiality, protection from harm, and debriefing.
当心理学家使用人类或动物参与者进行研究时，他们必须遵循严格的伦理准则，以保护参与者的福利和尊严。伦理是指引行为对错的道德原则。对 Year 7 而言，五项关键伦理原则被重点强调：知情同意、退出权、保密、避免伤害和事后解释。
Informed consent means that participants (or their guardians, if under 16) must be fully informed about the nature of the study and agree to take part without pressure. The right to withdraw guarantees that a participant can stop at any time without penalty. Confidentiality ensures that personal information is not shared publicly; data is usually anonymised.
知情同意意味着参与者（若未满 16 岁，则为其监护人）必须充分了解研究的性质，并在没有压力的情况下同意参加。退出权保证参与者可以随时停止而无须承担任何惩罚。保密确保个人信息不公开分享；数据通常会进行匿名处理。
Protection from harm is perhaps the most important rule: participants should not leave a study in a worse psychological or physical state than when they started. This includes avoiding stress, embarrassment, or discomfort. Debriefing is a conversation after the study where the researcher explains the true purpose, answers questions, and checks for any unintended distress. It is especially vital if any deception was used—for example, in a memory study where participants were not told they would be tested later.
避免伤害可能是最重要的规则：参与者不应在研究结束时比开始时处于更差的心理或身体状态。这包括避免压力、尴尬或不适。事后解释是在研究结束后进行的谈话，研究者解释真实目的，回答问题，并检查是否存在任何意外的不适。如果使用过任何欺骗手段——例如，在一个记忆研究中未告知参与者之后会进行测试——事后解释就格外重要。
These ethical rules exist because of past studies that mistreated participants. By learning them in Year 7, you start to appreciate that knowledge cannot be pursued at any cost. Respect for people is at the heart of ethical psychology.
这些伦理规则之所以存在，是因为过去的一些研究曾不当对待参与者。通过在 Year 7 学习这些规则，你开始明白知识不能以任何代价来追求。尊重人是伦理学心理学的核心。
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