π The study of how people think, learn, remember, and process information.
π Focuses on mental processes π§ (unlike behaviorism, which only studies observable behavior).
π‘ Memory Trick: "Cognition = Computer for the Mind!" π»
π Key Areas of Cognitive Psychology
1β£ Perception β How we interpret what we see, hear, and feel. ππ
2β£ Memory β Why we remember some things and forget others. π§
3β£ Language β How we learn and use words. π£
4β£ Problem-Solving β How we think through challenges. π
5β£ Attention β How we focus on specific information. π―
π‘ Memory Trick: "People Make Language Problems Attention-worthy!" (P.M.L.P.A.)
π Dialectic Approach (How Ideas Evolve Over Time!)
(Mnemonic: "T.A.S. β Thesis, Antithesis, Synthesis")
β Thesis β An original idea or belief. π‘
β Antithesis β A conflicting idea or opposite belief. β‘
β Synthesis β A new idea combining both views. π
π‘ Example: You believe coffee is best for studying (Thesis). Your friend argues tea is better (Antithesis). You realize both can work, depending on the situation (Synthesis). βπ΅
π£ Rationalism vs. Empiricism (How Do We Gain Knowledge?)
(Mnemonic: "Think vs. Experience")
π§ Rationalism β Knowledge comes from thinking & logic (no experiments needed).
π Empiricism β Knowledge comes from experience & observation (experiments are essential).
π‘ Memory Trick: "Rationalists think, empiricists see!" π
π¬ Emergence of Cognitive Psychology
π¨βπ« Key Contributors & Their Ideas:
π Karl Lashley β The brain is active, not just reactive.
π Donald Hebb β Brain learns by forming neural connections.
π Alan Turing β AI & computers can mimic human thought! π€
π Ulric Neisser β Wrote the book Cognitive Psychology (1967).
πDonald Broadbent - Studied human attention and problem-solving during WWII.
π Jerry Fodor β The mind is modular (has specialized parts).
π‘ Memory Trick: "Lashley Thinks, Hebb Connects, Turing Computes, Neisser Writes, Broadbent solves, Fodor Modules!"
π§ What is Intelligence?
π Intelligence = The ability to learn, solve problems, and adapt to new situations.
π‘ Memory Trick: "Smart = Learning + Adapting!"
(Mnemonic: "Narrow, Broad, General!")
1β£ Stratum I β Specific abilities (e.g., spelling, reasoning speed).
2β£ Stratum II β Broad abilities (e.g., memory, learning, fluid & crystallized intelligence).
3β£ Stratum III β General intelligence (g-factor).
π‘ Memory Trick: "Narrow skills build into Broad knowledge, forming General intelligence!"
π₯ Stratum II: The Most Interesting Level! (Mnemonic: "Fast Cats Love Very Speedy Runs!") πββπ±
Β Fluid Ability β Quick thinking & problem-solving. πββ
Β Crystallized Ability β Knowledge & vocabulary. π
Learning & Memory β Storing & recalling facts. π§
Visual & Auditory Perception β Seeing & hearing patterns. ππ
Speed of Response β How fast & accurately you react. β‘
(Mnemonic: "L.L.S.M.B.I.I.N." β "Llamas Love Singing, Moving, Being In Nature!")
1β£ Linguistic β Words & language. π£
2β£ Logical-Mathematical β Numbers & reasoning. π’
3β£ Spatial β Visualizing things. π¨
4β£ Musical β Sounds & rhythm. π΅
5β£ Bodily-Kinesthetic β Physical movement. π€Έ
6β£ Interpersonal β Understanding others. π€
7β£ Intrapersonal β Understanding yourself. π‘
8β£ Naturalist β Recognizing patterns in nature. πΏ
π‘ Memory Trick: "Llamas Love Singing, Moving, Being In Nature!" π¦πΆ
3β£ Sternbergβs Triarchic Theory of Intelligence
(Mnemonic: "C.A.P. β Creative, Analytical, Practical")
1β£ Creative Intelligence β Generating new ideas. π‘
2β£ Analytical Intelligence β Evaluating if ideas work. π
3β£ Practical Intelligence β Applying ideas in real life. π·
π‘ Memory Trick: "You need C.A.P. to be intelligent!" π§’
π Research Methods in Cognitive Psychology
(Mnemonic: "L.P.S.C.N.C.")
1β£ Laboratory Experiments β Controlled studies π’
2β£ Psychobiological Research β Brain & behavior π§
3β£ Self-Reports β Participants describe their thoughts π£
4β£ Case Studies β In-depth analysis of individuals π
5β£ Naturalistic Observation β Studying real-world behavior π
6β£ Computer Simulations & AI β Modeling human thought π€
π‘ Memory Trick: "Llamas Play Smart Chess, Not Checkers!" β
(Mnemonic: "D.A.I.S.R." β Data, Adapt, Interact, Science, Research!")
1β£ Data + Theory β Theories need data, and data needs theories. π¬
2β£ Adaptive Cognition β Thinking helps us survive, but itβs not perfect. π
3β£ Interactions β Thoughts, emotions, and actions influence each other. π
4β£ Scientific Variety β Many methods help understand cognition. π§βπ¬
5β£ Research Applications β Basic research leads to real-world applications. π₯
𧩠Brain Structure Overview
π Mnemonic: "F.M.H. β Forebrain, Midbrain, Hindbrain" π§
1β£ Forebrain (Thinking & Emotions) (Top/Front Region)
π Septum β Controls anger & fear π‘π¨
β If damaged, you might become more aggressive or fearless in dangerous situations!
π Amygdala β The "emotion center" of the brain π±π
β Processes fear, excitement, and emotional memories!
β Example: When you see a spider π· and feel instant fear, thank your amygdala!
π Hippocampus β Your brainβs memory bank! π§ π
β Helps store and retrieve memories
β Example: If you always forget names but remember songs πΆβblame your hippocampus!
π Thalamus β The "traffic control center" π¦
β Relays sensory information to the right brain areas
β Example: If you touch something hot π₯, your thalamus sends that info to your brain!
π Hypothalamus β The "survival boss" π‘
β Regulates fight, flight, feeding, and mating (The 4 Fs!)
β Example: When youβre hungry, your hypothalamus tells you to find food! π
π‘ Memory Trick: "Forebrain Feels!" β€
2β£ Midbrain (Alertness & Coordination) (Center Region)
β Controls eye movement & consciousness.
β Reticular Activating System (RAS) β Sleep & wakefulness.
π‘ Memory Trick: "Midbrain Moves & Monitors!"Β
3β£ Hindbrain (Vital Functions & Balance) (Back Region)
β Medulla Oblangata β Heart rate & breathing.
β Pons β Relays signals between different parts of the brain.
β Cerebellum β Balance & coordination (a.k.a. "Little Brain").
π‘ Memory Trick: "Hindbrain Helps you Stay Alive!" πββ
π Brainstem: The Bodyβs Communication Highway
π Connects the Forebrain to the Spinal Cord
π Includes: Hypothalamus, Thalamus, Midbrain, and Hindbrain
𧩠Brain Lobes & Their Functions
(Mnemonic: "F.P.O.T. β Friends Play Outside Together!")
1β£ Frontal Lobe β Thinking, planning, decision-making π€
2β£ Parietal Lobe β Touch, spatial awareness β
3β£ Occipital Lobe β Vision π
4β£ Temporal Lobe β Hearing, language, memory πΆ
π‘ Memory Trick: "F.P.O.T. β Friends Play Outside Together!" π
β The thin outer layer of the brain (1-3mm thick) but holds 80% of brain power! β‘
β Responsible for thinking, memory, decision-making, and problem-solving.
π Brainβs "Landmarks" (Grooves & Folds)
β Sulci β Small grooves π
β Fissures β Large grooves π
β Gyri β Raised bulges between grooves πΌ
π‘ Memory Trick: "More folds = More brainpower!" π§ β‘
π Left vs. Right Brain: "The Great Divide!"
(Mnemonic: "Left = Logic, Right = Creativity!")
β Left Hemisphere β Controls the right side of the body! β
β Right Hemisphere β Controls the left side of the body! π¨
π Left Brain = Logical, Language, Analytical π§ π’
π Right Brain = Spatial, Creative, Artistic π¨π
π‘ Memory Trick: "Left = Language, Right = Rhythm!"
Information Transmission:
Contralateral: Opposite side control (e.g., left hemisphere controls the right side of the body).
Ipsilateral: Same side control (less common
π Corpus Callosum β The "bridge" connecting the left & right hemispheres π
π When cut (due to epilepsy treatment), each side of the brain works independently! π€―
β Left Hemisphere β Can speak, but canβt recognize images without the right brain.
β Right Hemisphere β Can see but canβt verbalize what it saw!
π‘ Memory Trick: "Cut the bridge = Two independent minds!" π§ π§
π The Four Lobes of the Brain
(Mnemonic: "F.P.O.T. β Friends Play Outside Together!")
β Frontal Lobe β Thinking, planning, problem-solving π§ π‘
β Parietal Lobe β Touch, spatial awareness βπΊ
β Occipital Lobe β Vision & image processing ππΈ
β Temporal Lobe β Hearing, language, memory π΅π
π‘ Memory Trick: "F.P.O.T. β Friends Play Outside Together!" π
β Neurons: The Brainβs Electrical Wires!
π Neurons = Brain cells that transmit electrical signals β‘π
π Neocortex β The most neuron-packed brain area (~100,000 neurons per cubic mm!)
π‘ Memory Trick: "Neurons = Brainβs Wi-Fi!" πΆπ§
Networks: Neurons work together in networks to process and share information.
Receptors and Psychopharmacology
Key Concept: Brain receptors (normally for neurotransmitters) can be hijacked by drugs, affecting brain function.
π‘ Studying the Brain
1β£ Postmortem Studies β Brain research after death.
2β£ In Vivo Studies β Real-time brain activity monitoring.
3β£ Modern Imaging β fMRI, EEG, PET scans.
π‘ Memory Trick: "Look Inside, Look Alive!" π¬
β Brain Disorders
π Cause: Sudden disruption of blood flow to the brain. π§
π Types:
β Ischemic Stroke β Blocked artery (like a clogged pipe π°).
β Hemorrhagic Stroke β Burst blood vessel (like a water pipe explosion π₯).
π Symptoms:
β Weakness or numbness (often on one side of the body).
β Confusion, trouble speaking or understanding.
β Dizziness, vision problems, loss of coordination.
β Worst headache of your life? Might be a stroke! π¨
π‘ Memory Trick: "FAST: Face drooping, Arm weakness, Speech trouble = Time to call 911!" π
π Types:
β Primary Tumors β Start in the brain. π§
β Secondary Tumors β Spread from other parts of the body. π¨
π Symptoms:
β Morning headaches (worse when waking up).
β Nausea, vision/speech problems, balance issues.
β Personality or memory changes (sudden mood swings).
β Seizures or tingling in limbs.
π‘ Memory Trick: "Morning migraines + memory loss? Get checked!" π
π Types:
β Closed-Head Injuries β Skull stays intact (e.g., concussion). π€
β Open-Head Injuries β Skull is penetrated (e.g., gunshot wound). π
π Symptoms:
β Unconsciousness, abnormal breathing.
β Unequal pupils, dizziness, seizures.
β Speech/vision issues, vomiting, loss of bladder/bowel control.
π‘ Memory Trick: "If you hit your head & feel dizzy, see a doctor!" π₯
π Tried to link intelligence to specific brain areas but failed. β
π‘ Memory Trick: "Smartness isnβt in just one spotβitβs teamwork!" π€
π Suggests intelligence is based on multiple brain areas working together!
π Key Brain Areas:
β Frontal Lobe β Planning, decision-making. π‘
β Parietal Lobe β Sensory processing, problem-solving. ππΊ
β Anterior Cingulate Cortex β Attention, focus. π―
β Temporal & Occipital Lobes β Memory & vision. π
π Limitation:
P-FIT shows brain activity patterns but doesnβt fully explain intelligence. π€
π‘ Memory Trick: "Smart brains = Teamwork between lobes!" π€
β Perception = How we recognize, organize, and make sense of what we see. ππ§
β Itβs not just seeingβitβs understanding!
π‘ Example: Your eyes see a blurry figure at night (seeing), but your brain decides if it's a person or just a shadow (perceiving)!
β Seeing = Physical process of receiving images.
β Perceiving = Mental process of interpreting images.
π‘ Memory Trick: "Seeing is receiving, perceiving is believing!" πβ
π Pathology = A disease or disorder that disrupts normal body or brain function.
π Can be caused by injuries, infections, genetics, or chemical imbalances.
π‘ Memory Trick: "Pathology = Problems in the Path of Normal Function!" π§
π Blindness β Complete loss of sight. π«π
π Color Blindness β Difficulty seeing certain colors (e.g., red-green confusion). πβ
π‘ Memory Trick: "If the eyes donβt work, perception wonβt start!" π¦
π Visual Agnosia β "I see it, but I donβt recognize it!" π΅
β You can describe an object but canβt identify it by looking at it.
β Example: Seeing a π but not knowing itβs an apple (until you touch or smell it).
π Prosopagnosia (Face Blindness) β "I see a face, but I donβt know who it is!" π
β Inability to recognize familiar faces, even close friends or family.
β Example: Brad Pitt has this condition and struggles to recognize people!
π Achromatopsia (Total Color Blindness) β "My world is black and white!" β«βͺ
β Complete loss of color perception, seeing only in grayscale.
β Unlike regular color blindness, which only affects specific colors.
π‘ Memory Trick: "Vision = Eyes, Perception = Brain!" π§ π
(Mnemonic: "S.R.B.P. β Stimulus, Retina, Brain, Perception!")
1β£ Stimulus (Object You See) β Example: A π apple.
2β£ Retina (Eyeβs Camera Sensor) β Light reflects off the apple and stimulates receptors in the retina.
3β£ Brain (Visual Cortex in Occipital Lobe) β Signals travel through the optic nerve to the occipital lobe at the back of the brain.
4β£ Perception (Final Image) β The brain interprets the appleβs shape, color, and movement to decide what it is.
π‘ Memory Trick: "S.R.B.P. β See, Record, Brain Process, Perceive!"
β The brain searches for stability and fills in missing details to make sense of images.
β Bistable Images β When an image has two possible interpretations, but you can only see one at a time! (e.g., Rubin Vase πΊ β Vase or Two Faces?)
π‘ Memory Trick: "Your brain is an illusionistβit tricks you to make sense of reality!" π©β¨
β Mood & Emotions β A happy person sees faces as friendlier. π
β Stress & Anxiety β A scared person overestimates threats. π¨
β Culture & Experience β Different cultures interpret images differently! π
β Visual Context β Colors look different depending on background (e.g., the Dress: Blue/Black or White/Gold?)
π‘ Memory Trick: "Your brain sees what it wants to see!" π€―
β Sensory Adaptation β The brain ignores unchanging stimuli over time.
β Ganzfeld Effect β When exposed to a uniform color field (e.g., fog π«), we stop seeing details and see only gray.
π‘ Example: Stare at a red wall for a long time β It fades to gray!
π Attention = Actively selecting what to focus on. π―
π Our senses take in tons of information, but attention filters out the unnecessary stuff!
π‘ Example: Youβre in a noisy room π but still hear your name from across the roomβyour brain filters it as important!
β Attention is limited β You canβt focus on everything at once! π΅
β Selective attention = Choosing what to focus on. π
β Divided attention = Doing multiple things at once. πββπ§π
π‘ Memory Trick: "Attention is like Wi-Fiβtoo many connections slow it down!" πΆ
π Consciousness = Awareness of yourself & surroundings. π§ π
π It includes thoughts, feelings, sensations, and focus.
π‘ Example: Right now, youβre aware that youβre reading this, but you can also shift your focus to the sound of your breathing!
β You can be conscious without being attentive! (e.g., daydreaming in class).
β Consciousness & attention overlap, but theyβre not the same!
π‘ Memory Trick: "Consciousness is the ocean, attention is the boat you steer!" β΅π
π Signal Detection Theory (SDT) β How we detect important signals while ignoring distractions.
π Vigilance β Staying alert for a long time to detect something specific.
π‘ Example: A security guard scans dozens of screens but only reacts if he sees something suspicious! π΅ββοΈ
β Four Possible Outcomes:
β
Hit β Correctly detecting something important! π―
β Miss β Failing to notice something important! β
β False Alarm β Thinking something is there when itβs not! π¨
β
Correct Rejection β Ignoring distractions successfully! π«
π‘ Memory Trick: "Spot the right signals, ignore the noise!" π΅π
2β£ Search (Finding What You Need!) π
π Searching for a specific object among many.
π Three Theories of Search:
β Feature-Integration Theory β We recognize objects by combining different features. π¨
β Similarity Theory β The more similar things are, the harder they are to find! π
β Guided Search Theory β We look at important things first! π¦
π‘ Example: Whereβs Waldo? You search for his red-and-white stripes among a busy scene! ππ΄βͺ
π‘ Memory Trick: "Eyes scan, brain plans!" π§ π
π The Cocktail Party Problem β How we focus on one conversation in a noisy room! ππ£
π Dichotic Presentation β Listening to two different things at once (very hard to do!).
β Factors That Help Focus:
π Loudness β We hear louder voices more easily.
π Location β We focus on sounds closer to us.
π΅ Pitch & Rhythm β High/low voices stand out.
π‘ Memory Trick: "Selective attention is like noise-canceling headphones for your brain!" π§
π Can we focus on multiple tasks at once? Yes, butβ¦ π§
β Practice helps! (Driving becomes automatic over time ππ¨).
β But complex tasks suffer! (Texting while driving is dangerous! π¨π±).
β Neisser & Becklen (1980s) β We multitask better with practice, not special cognitive abilities.
π‘ Example: You can walk & talk, but can you read & talk at the same time? π€
π‘ Memory Trick: "The brain is powerful, but it's not a computer with unlimited tabs open!" π»π
π 1β£ Anxiety β Too much stress hurts focus! π°
π 2β£ Arousal β A little excitement helps, but too much overwhelms! β‘
π 3β£ Task Difficulty β Harder tasks need more attention. πββοΈ
π 4β£ Skills β Experts focus better because theyβre trained! π―
π‘ Memory Trick: "Stay calm, stay sharp!" π
π€ Controlled vs. Automatic Processes
β Controlled Processing β Requires conscious effort.
β Automatic Processing β Happens without thinking.
π‘ Example: Learning to drive (controlled), then driving after years of experience (automatic)! ππ¨
π‘ Memory Trick: "First, you focus. Then, you flow!" πββ
Neurotransmitters are chemical messengers that help your brain send signals to different parts of the body. πββπ¬
π‘ Think of them like:
β Acetylcholine (Ach) = Memory Booster π
β Dopamine (DA) = The "Feel-Good" & "Move-Well" Chemical ππββ
β Epinephrine/Norepinephrine = Fight-or-Flight Mode β‘π₯
β Serotonin = Mood & Sleep Regulator π΄π
β GABA = The Brain's Chill Pill π§ββ
π¬ Made from: Choline
π‘ Function: Helps with memory, muscle movement & learning
π¨ Too little? Memory loss (Alzheimerβs!)
π― Example: Found in high amounts in the hippocampus (brainβs memory center).
π‘ Memory Trick: "A-C-H = Always Creating History (memories!)" π
π¬ Made from: Tyrosine
π‘ Function: Controls movement, attention, and pleasure
π¨ Too little? Parkinsonβs disease (shaking & stiffness π’)
π¨ Too much? Linked to schizophrenia (hallucinations!)
π‘ Memory Trick: "Dope-amine = Makes you feel dope & move smoothly!" πΊ
π¬ Made from: Tyrosine
π‘ Function: Regulates alertness, fear, and stress response (a.k.a. adrenaline rush!)
π¨ Too much? Anxiety & stress overload π±
π‘ Memory Trick: "Epinephrine = Emergency Energy! π"
π¬ Made from: Tryptophan (found in turkey π¦!)
π‘ Function: Controls mood, sleep, and happiness
π¨ Too little? Depression & insomnia π
π‘ Memory Trick: "Serotonin = Smile-tonin! π"
π¬ Made from: Amino acids
π‘ Function: Calms the brain, reduces stress & anxiety
π¨ Too little? Overthinking, anxiety, and epilepsy π΅
π‘ Memory Trick: "GABA = Get A Break, Alright?" π
π¬ Type: Amino acid neurotransmitter
π‘ Function: Excites brain cells for learning & memory π§
π¨ Too much? Brain damage (like in strokes!)
π‘ Memory Trick: "Gluta-MATE helps you memorize, mate!" π
π¬ Type: Peptide chains acting as neurotransmitters
π‘ Function: Pain relief & enhances Acetylcholine (Ach)
π¨ Example: Endorphins = natural painkillers & feel-good chemicals!
π‘ Memory Trick: "Neuropeptides = Natural Pain Protectors!" π