Try the experiments yourself
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Attention, Selection, and Vigilance
Tasks that make orienting, selection, temporal attention, and continuous monitoring visible in real time.
Attentional Network Task
CoreAlerting, orienting, and conflict in one task
Spatial Attention (Posner Cueing)
CoreExogenous cueing: peripheral cue, 300 ms SOA
Visual Search (Feature vs Conjunction)
Core2AFC set-size effect task
Attentional Blink
Temporal limits of attention
Inhibition of Return (IOR)
Exogenous cueing: non-predictive cue, 500 to 700 ms SOA
Letter Search
Find the rotated T among Ls
Psychomotor Vigilance Task
Sustained readiness with unpredictable foreperiods
Rapid Visual Processing
Rapid digit streams with target sequence monitoring
Visual Search (Present/Absent)
Feature vs conjunction search with target-absent trials
Interference, Conflict, and Cognitive Control
Tasks centered on automaticity, response conflict, inhibition, and switching between rules.
Classic Stroop (2 Color)
CoreColor/word interference task
Eriksen Flanker Task
CoreDirectional congruency task
Stop Signal Task
CoreReactive response inhibition
Task Switching
CoreAlternating rule costs
Donders Response Types
Simple, go/no-go, and choice reaction conditions
Hearts and Flowers
Congruent, incongruent, and mixed rule blocks
Left-Right Task
Word meaning versus spatial location
Negative Priming
Distractor interference resolution
Posner Letter Match
Letter matching by name: physical vs name identity
Simon Task
Stimulus-response compatibility
Stimulus Quality Task
Perceptual degradation and processing speed
Working Memory and Verbal Learning
Short, classroom-friendly tasks for capacity limits, updating, and immediate memory span.
Digit Memory Span
CoreExperimentalForward and backward immediate memory span
New in Classperiment · not yet fully tested
N-Back Task
CoreWorking memory updating and monitoring
A Room and Its Objects
ExperimentalLook at a room carefully. A few short tasks follow.
New in Classperiment · not yet fully tested
Change Detection (Working Memory)
Visual working memory capacity
Colours in Memory
ExperimentalRemember two or six coloured squares, then pick the colour of a marked position on a colour wheel
New in Classperiment · not yet fully tested
Learning and rating words
Experimental24 words one at a time: after each, rate how likely you are to remember it, then type the words you remember
New in Classperiment · not yet fully tested
Letters at a Glance
ExperimentalA field of letters appears very briefly; afterwards an arrow shows which row to enter
New in Classperiment · not yet fully tested
Recognising Words
ExperimentalStudy two short word lists, then decide whether individual words appeared in them
New in Classperiment · not yet fully tested
Remembering Words
ExperimentalWord lists shown one word at a time, recalled in any order
New in Classperiment · not yet fully tested
Spatial Working Memory (Corsi)
Sequential visuospatial capacity
Word or Nonword?
ExperimentalDecide quickly whether the second of two strings is a real word in the task language
New in Classperiment · not yet fully tested
Learning, Executive Function, and Problem Solving
Tasks where performance changes with feedback, practice, or repeated experience.
Serial Reaction Time Task
CoreImplicit sequence learning
Assigning words quickly
ExperimentalDecide quickly whether a word names something pleasant or unpleasant; a letter string comes before each word
New in Classperiment · not yet fully tested
Card Sorting Task
Sort picture cards by a hidden rule, guided only by feedback (after Grant & Berg, 1948)
Four Decks
ExperimentalChoose between four decks and explore how you learn from gains and losses.
New in Classperiment · not yet fully tested
Names and Impressions
ExperimentalRate made-up names, watch names together with words, then rate the names again
New in Classperiment · not yet fully tested
Points for Actions
ExperimentalTry out two machines: press a key or a button and collect game points
New in Classperiment · not yet fully tested
Predicting the weather from cues
ExperimentalSome cards appear on each screen; predict sun or rain and learn the relations from the feedback
New in Classperiment · not yet fully tested
Quick Colour Naming
ExperimentalMatch the font colour to the right key or button as fast as you can
New in Classperiment · not yet fully tested
Shapes announce events
ExperimentalTwo shapes appear again and again; each time, estimate how likely a star is to follow
New in Classperiment · not yet fully tested
Similar shapes, similar expectations
ExperimentalWatch what follows the circles and estimate each time how likely a star is to appear
New in Classperiment · not yet fully tested
Symbol Digit Substitution
Processing speed with a visible code table
Trail Making
Sequential visual search and alternating set switching
Perception, Spatial Cognition, and Psychophysics
Tasks that highlight perceptual bias, mental transformation, and decision making under uncertainty.
Mental Rotation (Letters)
Core2D alphanumeric rotation
Mueller-Lyer Illusion
CorePerceptual length illusion bias
Cross Out the Circles
ExperimentalFind every circle that is open at the top and tap or click it
New in Classperiment · not yet fully tested
Dot Reaction Task
Simple reactions to one or two dots
Global vs Local (Navon)
Hierarchical letter processing
Mark the Middle
ExperimentalMark the middle of horizontal lines as precisely as you can
New in Classperiment · not yet fully tested
Mental Rotation (3D Objects)
Shepard & Metzler shapes
Random Dot Motion (RDK)
Perceptual evidence accumulation
Recognising Brief Shapes
ExperimentalA T appears very briefly; afterwards choose which way its crossbar pointed
New in Classperiment · not yet fully tested
Signal Detection
Perceptual sensitivity (d')
Spot the Stripes
ExperimentalDecide which way the stripes were tilted.
New in Classperiment · not yet fully tested
Judgement, Decision Making, and Reasoning
Tasks on how people estimate, choose and weigh outcomes.
A decision about two programmes
ExperimentalOne decision between two relief programmes for a hypothetical situation
New in Classperiment · not yet fully tested
An object and its price
ExperimentalAn object in an imagined situation and its price; nothing is really bought or sold
New in Classperiment · not yet fully tested
Choosing and estimating
ExperimentalFour short preference questions, each followed by an estimate for your course
New in Classperiment · not yet fully tested
Delay Discounting
ExperimentalMoney now or later: five adaptive choices
New in Classperiment · not yet fully tested
Discover a ranking
ExperimentalSix invented names form a fixed ranking; learn which of two names ranks higher
New in Classperiment · not yet fully tested
Four estimation questions
ExperimentalFour knowledge questions, each answered as a whole-number estimate
New in Classperiment · not yet fully tested
Four short judgement questions
ExperimentalFour invented short cases: two comparisons of statements, two probabilities in percent
New in Classperiment · not yet fully tested
Judging statements
ExperimentalRead short statements about astronomy and judge them later
New in Classperiment · not yet fully tested
Looking at shapes
ExperimentalLook at a short sequence of abstract shapes and rate some of them afterwards
New in Classperiment · not yet fully tested
Remembering and judging
ExperimentalRecall a few everyday situations as short keywords, then answer two short questions
New in Classperiment · not yet fully tested
Repeated pair choices
ExperimentalForty choices between two imagined offers that each pay either an amount of money or €0
New in Classperiment · not yet fully tested
Two choices
ExperimentalTwo choices between imagined money offers, after one question on chances
New in Classperiment · not yet fully tested
Evaluation and social cognition
Tasks on evaluations and social judgements: how quickly stimuli are evaluated and how one evaluation affects the next.
Classifying words
ExperimentalClassify the second of two words as positive or negative, quickly and accurately
New in Classperiment · not yet fully tested
Judging symbols
ExperimentalJudge unfamiliar symbols as rather pleasant or rather unpleasant
New in Classperiment · not yet fully tested
Sorting words
ExperimentalSort words to the left or right side as quickly and accurately as possible; the categories change between sections
New in Classperiment · not yet fully tested
Emotion and attention
Tasks on how emotional content in words and faces relates to attention, search, memory and responses.
Is the Face There?
ExperimentalSearch for a given face among other faces and decide whether it is there
New in Classperiment · not yet fully tested
Moving words
ExperimentalBring words closer or move them away with two keys or answer fields, following a rule that changes between the sections
New in Classperiment · not yet fully tested
Remembering a word list
ExperimentalSingle words one after another, a short task with digits, then type the words you remember
New in Classperiment · not yet fully tested
Two Highlighted Words
ExperimentalWords appear quickly one after another; afterwards choose the two highlighted ones
New in Classperiment · not yet fully tested
Two Words and a Dot
ExperimentalTwo words appear, then a dot: say as quickly as possible whether it is on the left or on the right
New in Classperiment · not yet fully tested
Words in Colour
ExperimentalName the font colour of different words and compare the response times.
New in Classperiment · not yet fully tested