📚 Year 10 CAIE Psychology: Key Concepts Overview | Year 10 CAIE 心理学核心知识点梳理
This article is designed for Year 10 CAIE Psychology students, summarising the essential topics, research studies, and theoretical frameworks you need to master. By breaking down each core area into clear English and Chinese explanations, we aim to help you build a solid foundation for the IGCSE examination. From memory models to ethical research practices, every section aligns closely with the CAIE syllabus.
本文专为 Year 10 CAIE 心理学学生梳理核心知识点，涵盖考试必须掌握的重要主题、关键研究和理论框架。我们通过清晰的英中双语解释，帮助你在记忆模型、研究方法、情绪理论等方面打下扎实基础，确保每个知识点紧扣考纲要求。
1. What is Psychology? | 心理学是什么？
Psychology is the scientific study of behaviour and mental processes. It uses empirical methods to investigate how individuals think, feel and act in different situations. The goals are to describe, explain, predict and sometimes change behaviour.
心理学是对行为和心理过程的科学研究。它采用实证方法来探究个体在不同情境下如何思考、感受和行动，其目标是描述、解释、预测以及在必要时改变行为。
Psychologists work within different approaches, such as the biological approach (looking at brain and hormones), the cognitive approach (focusing on mental processes like memory and perception), the learning approach (emphasising conditioning and observation) and the social approach (studying how others influence behaviour).
心理学家采用不同的取向进行研究，例如生物取向（关注大脑和激素）、认知取向（聚焦记忆、知觉等心理过程）、学习取向（强调条件反射与观察学习）以及社会取向（研究他人如何影响行为）。
Understanding these approaches is crucial because the same psychological phenomenon can be explained in multiple ways. For instance, aggression might be interpreted biologically (high testosterone), cognitively (hostile thinking) or socially (modelling aggressive role models).
理解这些取向至关重要，因为同一心理现象可以用多种方式解释。例如，攻击行为可从生物角度（高睾酮水平）、认知角度（敌意思维）或社会角度（模仿攻击性榜样）进行解读。
2. Memory and Forgetting | 记忆与遗忘
The Multi-Store Model (Atkinson & Shiffrin, 1968) describes memory as consisting of sensory memory, short-term memory (STM) and long-term memory (LTM). Information flows from one store to the next through attention and rehearsal.
多储存模型（Atkinson & Shiffrin, 1968）认为记忆由感觉记忆、短时记忆（STM）和长时记忆（LTM）组成。信息通过注意和复述从一个储存流向另一个储存。
Peterson and Peterson (1959) showed that without rehearsal, STM duration is very limited. Participants were given a consonant trigram (e.g. ‘KJP’) and then had to count backwards in threes to prevent rehearsal. Recall dropped sharply after 18 seconds, indicating that information fades rapidly unless actively maintained.
Peterson 与 Peterson (1959) 证明了无复述时 STM 的保持时间极短。被试先看到一个辅音三字组（如 ‘KJP’），然后以倒减三的方式计数以防复述。18 秒后回忆成绩急剧下降，表明若不主动维持，信息会迅速消退。
Murdock (1962) discovered the serial position effect: when recalling a list, participants tend to remember the first items (primacy effect, due to LTM) and the last items (recency effect, due to STM). This supports the distinction between short-term and long-term stores.
Murdock (1962) 发现了序列位置效应：回忆词表时，被试倾向于记住开头的项目（首因效应，来自 LTM）和最后的项目（近因效应，来自 STM）。这支持了短时储存与长时储存的区分。
Forgetting can occur because of trace decay, displacement in STM, or interference in LTM. Proactive interference (old information disrupts new) and retroactive interference (new information disrupts old) are two key explanations for why we forget.
遗忘可能由于痕迹消退、STM 中的替代，或 LTM 中的干扰而发生。前摄干扰（旧信息干扰新信息）和倒摄干扰（新信息干扰旧信息）是解释遗忘的两种主要机制。
3. Sleep and Dreaming | 睡眠与做梦
Sleep consists of several stages, including non-REM stages (NREM 1-3) and REM (rapid eye movement) sleep. The cycle repeats roughly every 90 minutes. REM sleep is characterised by eye movements, brain activity similar to wakefulness, and vivid dreaming.
睡眠包含多个阶段，包括非快速眼动阶段（NREM 1-3）和快速眼动睡眠（REM）。这一周期大约每 90 分钟重复一次。REM 睡眠的特征是快速眼动、类似清醒时的大脑活动以及生动的梦境。
Dement and Kleitman (1957) conducted a classic sleep lab study. Participants were woken up at different stages and asked about their dreams. They found that REM awakenings were far more likely to produce dream reports (80%) compared to NREM awakenings (7%). The direction of eye movement during REM sometimes matched dream content.
Dement 与 Kleitman (1957) 进行了经典的睡眠实验室研究。被试在不同阶段被唤醒并询问梦境。他们发现 REM 唤醒产生梦境报告的概率（80%）远高于 NREM 唤醒（7%）。REM 期间的眼动方向有时与梦境内容相符。
The activation-synthesis hypothesis (Hobson & McCarley, 1977) argues that dreams result from the brain’s attempt to make sense of random neural signals originating in the brainstem during REM sleep. This contrasts with Freudian theory, which sees dreams as disguised wish fulfilment.
激活合成假说（Hobson & McCarley, 1977）认为，梦是大脑试图理解 REM 睡眠期间脑干产生的随机神经信号的结果。这与弗洛伊德理论不同，后者将梦视为伪装的愿望满足。
Sleep deprivation can impair cognitive functions such as attention, decision-making and memory consolidation. Understanding sleep stages also helps psychologists investigate sleep disorders like insomnia and narcolepsy.
睡眠剥夺会损害注意力、决策和记忆巩固等认知功能。了解睡眠阶段还有助于心理学家研究失眠和发作性睡病等睡眠障碍。
4. Pro-Social Behaviour | 亲社会行为
Pro-social behaviour refers to voluntary actions intended to benefit others, such as helping, sharing or comforting. A key influence is whether bystanders intervene in an emergency. The bystander effect describes how the presence of others reduces the likelihood of any one person offering help.
亲社会行为指旨在使他人受益的自愿行为，如帮助、分享或安慰。一个关键影响因素是旁观者在紧急情况下是否插手。旁观者效应描述了他人存在会降低任何个体提供帮助可能性的现象。
Piliavin et al. (1969) staged emergencies on a New York subway to investigate helping behaviour. A confederate collapsed with a cane or appeared to be drunk. The ‘cane victim’ received help faster and more often, but in general, contrary to the diffusion of responsibility idea, larger group size did not consistently reduce help. Instead, arousal and cost-reward calculations drove intervention.
Piliavin 等人 (1969) 在纽约地铁上演了紧急情境以研究帮助行为。一名同谋者拄着拐杖倒下或假扮醉汉倒下。”拐杖受害者”更快且更频繁得到帮助，但总体来说，与责任扩散观念相反，更大群体并未持续减少帮助。相反，唤醒水平和代价-奖赏计算驱动了干预行为。
The cost-reward arousal model suggests that bystanders weigh the costs of helping (e.g. danger, embarrassment) against the rewards (e.g. praise, self-esteem). When arousal is high, people are motivated to reduce it by helping or leaving the scene.
代价-奖赏唤醒模型指出，旁观者会权衡帮助的代价（如危险、尴尬）与奖赏（如赞扬、自尊）。当唤醒水平较高时，人们有动机通过帮助或离开现场来减轻这种不适。
Factors encouraging helping include perceived similarity to the victim, a good mood, having seen a helpful role model, and knowledge of what to do. These insights can be applied to promote altruism in real-world settings.
促进助人行为的因素包括：对受害者的相似感、良好的心情、见过助人榜样以及知道该怎么做。这些见解可以应用于现实场景中促进利他行为。
5. Visual Perception and Illusions | 视知觉与错觉
Visual perception is the process by which we interpret sensory information to understand our environment. The direct theory (Gibson, 1979) argues that perception is innate and richly informed by affordances, whereas the constructivist theory (Gregory, 1970) claims perception is a construction involving hypotheses, past experience and inference.
视知觉是我们解读感觉信息以理解环境的过程。直接理论（Gibson, 1979）主张知觉是天生的，由知觉对象的供给予以充实；而建构理论（Gregory, 1970）则声称知觉是一种建构，涉及假设、过去经验和推断。
Visual illusions provide evidence for constructivism. The Mueller-Lyer illusion, where two identical lines with different arrowheads appear unequal in length, suggests that size constancy and depth cues (linear perspective) can trick the brain into misapplying perceptual rules.
视错觉为建构理论提供了证据。Müller-Lyer 错觉中，两条长度相同的线段因箭头方向不同而显得不等长，这表明大小恒常性和深度线索（线条透视）会骗过大脑，使其误用知觉规则。
Other important perceptual constancies include shape constancy, colour constancy and brightness constancy. These help us perceive a stable world despite changing sensory input. For example, a door is still seen as rectangular even when its retinal image is a trapezoid.
其他重要的知觉恒常性包括形状恒常性、颜色恒常性和亮度恒常性。它们帮助我们感知一个稳定的世界，即使感觉输入不断变化。例如，门即使网膜像呈梯形，我们仍将其视为矩形。
Depth cues can be binocular (retinal disparity, convergence) or monocular (linear perspective, relative size, occlusion). Psychologists study these to understand how the brain constructs a three-dimensional world from two-dimensional retinal images.
深度线索可以是双眼线索（视网膜像差、辐合）或单眼线索（线条透视、相对大小、遮挡）。心理学家研究这些线索以理解大脑如何从二维视网膜图像构建三维世界。
6. Motivation | 动机
Motivation is the driving force behind behaviour, directing us towards goals. It can be intrinsic (arising from within, e.g. personal enjoyment) or extrinsic (driven by external rewards, e.g. money or praise). Overjustification effect can occur when external rewards reduce intrinsic motivation.
动机是行为背后的驱动力，指引我们朝向目标。它可以是内在的（源自内部，如个人兴趣）或外在的（由外部奖励驱动，如金钱或表扬）。过分合理化效应可能发生，即外部奖励反而降低内在动机。
Maslow’s hierarchy of needs (1943) is a classic theory of motivation. It suggests that lower-level deficiency needs (physiological, safety, belongingness, esteem) must be satisfied before higher-level growth needs (self-actualisation) can be pursued.
马斯洛需求层次理论 (1943) 是经典的动机理论。它指出，必须先满足较低层次的匮乏需求（生理、安全、归属、尊重），而后才能追求较高层次的成长需求（自我实现）。
Biological motivations, such as hunger, are regulated by homeostatic mechanisms. The hypothalamus plays a central role, with the lateral hypothalamus (LH) triggering eating and the ventromedial hypothalamus (VMH) signalling satiety.
饥饿等生物性动机由体内平衡机制调节。下丘脑发挥核心作用，外侧下丘脑（LH）激发摄食，而腹内侧下丘脑（VMH）传递饱食信号。
In the context of education and work, motivation theories like self-determination theory emphasise autonomy, competence and relatedness. Psychologists apply these principles to boost engagement and performance in schools and organisations.
在教育和职业领域，动机理论如自我决定论强调自主性、胜任感和关系需求。心理学家运用这些原理来提升学校和组织中的投入度与表现。
7. Emotion | 情绪
Emotion involves physiological arousal, expressive behaviour and conscious experience. Three major theories attempt to explain the sequence: the James-Lange theory, Cannon-Bard theory and Schachter-Singer two-factor theory.
情绪涉及生理唤醒、表达行为和有意识的体验。三大理论试图解释其发生顺序：詹姆斯-兰格理论、坎农-巴德理论和沙赫特-辛格双因素理论。
James-Lange theory proposes that we first experience arousal, and then we interpret that arousal as an emotion. For example, ‘We feel afraid because we run’. Cannon-Bard criticised this, arguing that arousal and emotion occur simultaneously in the thalamus.
詹姆斯-兰格理论提出，我们先体验到身体唤醒，然后将这种唤醒解释为一种情绪。例如，”我们因为奔跑而感到害怕”。坎农-巴德对此提出批评，认为唤醒和情绪同时发生于丘脑。
Schachter and Singer (1962) showed that emotion depends on both physical arousal and cognitive labelling. Participants injected with adrenaline, who were unaware of its effects, adopted the emotional reaction of a confederate in the room, demonstrating that context shapes the label given to arousal.
沙赫特与辛格 (1962) 证明，情绪既依赖于生理唤醒，也依赖于认知标记。被试注射肾上腺素后，在不知药物效应的情况下，会采用同室内同谋的情绪反应，表明情境塑造了对唤醒的标记。
Facial feedback hypothesis suggests that our facial expressions can influence our emotional experience. Smiling can actually make us feel happier, and frowning can intensify sadness, which supports embodied cognition views.
面部反馈假说认为，面部表情可以影响我们的情绪体验。微笑真的能让我们感到更开心，皱眉则会加剧悲伤，这支持了具身认知的观点。
8. Language and Thought | 语言与思维
Language is a system of symbols and rules that enables communication. The relationship between language and thought is debated: the Sapir-Whorf hypothesis (linguistic relativity) claims that language shapes the way we think and perceive the world around us.
语言是一种使用符号和规则以实现交际的系统。语言与思维的关系存在争议：萨丕尔-沃尔夫假说（语言相对论）声称，语言塑造了我们思考和感知周遭世界的方式。
Piaget’s theory of cognitive development argues that thought precedes language. Children first develop object permanence and logical operations, and language serves as a tool to express already-formed thoughts. Egocentric speech in young children, according to Piaget, reflects immature thinking.
皮亚杰的认知发展理论认为思维先于语言。儿童首先获得客体永久性和逻辑运算，语言则作为表达已形成思维的工具。皮亚杰认为，幼儿的自我中心言语反映了不成熟的思维。
Vygotsky (1962) offered a contrasting view: language and thought initially develop independently and then merge through social interaction. Private speech is not a sign of cognitive immaturity but a self-regulation tool that guides problem solving and eventually becomes inner speech.
维果茨基 (1962) 提出了相反观点：语言与思维最初独立发展，然后通过社会互动融合。自言自语不是认知不成熟的标志，而是一种自我调节工具，引导问题解决并最终内化为内部言语。
Problem-solving strategies, such as algorithms (step-by-step procedures) and heuristics (mental shortcuts), are important aspects of thinking. The representativeness heuristic and availability heuristic can lead to cognitive biases that affect decision-making.
问题解决策略，如算法（逐步程序）和启发式（心理捷径），是思维的重要方面。代表性启发式和可得性启发式可能导致影响决策的认知偏差。
9. Research Methods | 研究方法
Psychological research relies on the scientific method. The experiment is the most common method for establishing cause-and-effect relationships. Key variables are the independent variable (IV), which is manipulated, and the dependent variable (DV), which is measured.
心理学研究依赖科学方法。实验是确立因果关系的最常用方法。关键变量包括自变量（IV，被操纵）和因变量（DV，被测量）。
Experimental designs include independent groups (different participants in each condition), repeated measures (same participants in all conditions) and matched pairs (participants matched on relevant characteristics and then split). Each design has strengths and weaknesses regarding order effects, demand characteristics and individual differences.
实验设计包括独立组设计（各条件下不同被试）、重复测量设计（所有条件下的相同被试）和配对组设计（依据相关特征匹配被试后分组）。每种设计在顺序效应、需求特征和个体差异上都各有优劣。
Non-experimental methods, such as observation, questionnaires and case studies, are used when experimentation is not possible or ethical. Observations can be covert or overt, participant or non-participant. Inter-observer reliability is important for reducing bias.
当实验不可行或不道德时，会使用非实验方法，如观察法、问卷调查和个案研究。观察可以是隐蔽或公开的，参与或非参与的。观察者间信度对减少偏差至关重要。
Data analysis involves descriptive statistics (mean, median, mode, range) and graphs. Drawing conclusions requires consideration of reliability and validity. A reliable study yields consistent results, while a valid study measures what it intends to measure.
数据分析涉及描述性统计（平均数、中位数、众数、范围）和图表。得出结论需考虑信度和效度。信度高的研究结果一致，效度高的研究则测量了其预定要测量的内容。
10. Ethical Issues and Key Studies | 伦理问题与关键研究
Ethical guidelines protect participants from harm and uphold the integrity of research. The main principles include informed consent, the right to withdraw, confidentiality, avoidance of deception (unless justified), debriefing and protection from physical or psychological harm.
伦理准则保护参与者免受伤害，并维护研究的诚信。主要原则包括知情同意、退出权利、保密、避免欺骗（除非有正当理由）、事后说明以及保护免受身体或心理伤害。
In the Piliavin et al. subway study, no informed consent could be obtained from the unsuspecting passengers, and debriefing was impossible. However, it was justified because the deception was minimal and the study had a high social value. Ethical committees weigh such factors in their judgement.
在 Piliavin 等人的地铁研究中，无法从未知情的乘客处获得知情同意，也无法进行事后说明。然而，由于其欺骗程度极低且研究社会价值高，该研究被视为合理。伦理委员会在评判时会权衡这些因素。
Key studies across the CAIE syllabus provide not only core knowledge but also critical thinking opportunities. For example, Dement and Kleitman’s sleep lab study demonstrates strong internal validity due to controlled EEG monitoring but limited ecological validity. Peterson and Peterson’s trigram experiment is highly replicable but may lack mundane realism.
CAIE 考纲中的关键研究不仅提供了核心知识，也创造了批判性思维的机会。例如，Dement 和 Kleitman 的睡眠实验室研究因受控的脑电图监测而内部效度较高，但生态效度有限。Peterson 和 Peterson 的三字组实验可复制性高，但可能缺乏日常现实性。
When preparing for exams, students should be able to describe the aim, procedure, results and conclusion of each key study, and evaluate its strengths and weaknesses using the concepts of validity, reliability, ethics and applicability to everyday life.
在备考时，学生应能描述每项关键研究的目的、步骤、结果和结论，并运用效度、信度、伦理和日常适用性等概念评价其优势与不足。
Published by TutorHao | Psychology Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导