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Psychology Facts
893 facts in Psychology. Click any fact to see its full page.
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The placebo effect can cause measurable changes in brain chemistry, including the release of endorphins and dopamine.
ASMR, a tingling sensation triggered by specific sounds, activates brain regions associated with reward and emotional arousal.
Misophonia is a condition where certain sounds, like chewing or breathing, trigger intense emotional reactions.
Phantom limb syndrome causes amputees to feel sensations in limbs that no longer exist.
The McGurk effect demonstrates that what you see can override what you hear — watching lip movements can change the sound you perceive.
Color blindness is more common in men, affecting about 8% of males but only 0.5% of females.
The average person laughs about 13 times a day.
Flow state, described by psychologist Mihaly Csikszentmihalyi, is the mental state of complete absorption in an activity where time seems to disappear.
The spotlight effect causes people to believe they are being noticed more than they actually are.
Intrinsic motivation — doing something because you find it rewarding — is more sustainable than external rewards.
The default effect explains why people tend to stick with pre-selected options rather than making active choices.
Emotional intelligence is a better predictor of professional success than IQ in many fields.
The generation effect shows that you remember information better when you generate it yourself rather than passively reading it.
Social proof is the psychological tendency to follow what others are doing, especially in uncertain situations.
People tend to prefer things they can see and touch over abstract concepts, a tendency known as the concreteness bias.
The Barnum effect explains why people believe vague, general personality descriptions are uniquely applicable to them.
Cognitive load theory explains why multitasking reduces performance — your working memory has a limited capacity.
The Hawthorne effect describes how people modify their behavior simply because they know they are being observed.
People remember experiences at beginnings, endings, and peaks more than any other moments — this is called the peak-end rule.
Laughter is genuinely contagious — hearing someone laugh activates the brain regions responsible for moving facial muscles into a smile.
The paradox of choice shows that having too many options can lead to anxiety, regret, and decision avoidance.
People tend to overvalue items they partially created, a phenomenon called the IKEA effect.
The Zeigarnik effect explains why cliffhangers in TV shows are so effective — unfinished storylines keep your brain engaged.
Cognitive behavioral therapy has been shown to physically change brain structure by strengthening neural pathways associated with rational thinking.
The negativity bias means that negative events have a greater impact on our mental state than positive events of equal magnitude.
People are more likely to believe false information if it is repeated often enough, known as the illusory truth effect.
The Tetris effect is a phenomenon where spending a long time on a repetitive task causes you to see patterns related to it everywhere.
In 1932, a man named Phineas Gage survived having a 3-foot iron rod blasted through his skull, which dramatically changed his personality.
Synesthesia is a condition where stimulation of one sense triggers an automatic experience in another, like seeing colors when hearing music.
The average person forgets 90% of their dreams within 10 minutes of waking up.
Your brain processes negative experiences faster than positive ones as an evolutionary survival mechanism.
The endowment effect causes people to value things more highly simply because they own them.
Gratitude journaling has been shown to improve sleep, reduce symptoms of illness, and increase happiness.
Emotional memories are stored differently in the brain and tend to be more vivid and detailed than neutral memories.
The Pygmalion effect demonstrates that higher expectations lead to higher performance.
Impostor syndrome affects an estimated 70% of people at some point in their lives.
The sunk cost fallacy causes people to continue investing in something because of what they have already spent rather than what they stand to gain.
Social facilitation shows that people perform simple tasks better in front of an audience but complex tasks worse.
The recency effect means you are more likely to remember the last items in a sequence than the ones in the middle.
Choice paralysis occurs when too many options lead to difficulty making any decision at all.
The planning fallacy describes the tendency to underestimate the time needed to complete a task, even when you have done similar tasks before.
Emotional contagion is the tendency to unconsciously mimic the emotions of people around you.
The availability heuristic causes people to overestimate the likelihood of events that are more easily recalled from memory.
People remember events that confirm their existing beliefs more easily than events that contradict them.
Power posing — standing in a confident posture for two minutes — has been shown to increase testosterone and decrease cortisol.
The Baader-Meinhof phenomenon is when you learn about something new and then start noticing it everywhere.
Procrastination is linked to emotional regulation, not laziness — people procrastinate to avoid negative feelings associated with a task.
The mere exposure effect means that people tend to develop a preference for things simply because they are familiar with them.
Telling someone your goals makes you less likely to achieve them because your brain gets a premature sense of accomplishment.
The halo effect causes people to assume that attractive individuals also possess other positive traits like intelligence and kindness.