stimdatabases - Methods

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Databases for Stimulus Selection, Evaluation and Other Tools

This page provides links to databases or other web-sites which may be useful for the selection, evaluation or manipulation of stimulus material. There is information on



[ PsychWiki Archive] (useful links to norms, stimuli, data etc.)

[ Overview of Published Norms] (From "Behavior Research Methods, Instruments, & Computers" - up to 1999)

[ Searchable Archive] of the Psychonomic Society ([ description])

[ "Mix and Match" Software] (for stimulus matching and pseudorandomising)

[ MGH OptSeq] (Randomization tool for event-related fMRI designs)

[ fmripower] (matlab based power calculation tool for group fMRI studies)

[ The R Project for Statistical Computing]

[ R Seek] Search engine for R-related issues



[ CoCoMac Database], Collations of Connectivity data on the Macaque brain


Language, Word Recognition

There are more links to language-related databases on the [ Language Group Wiki]

[ Linguistic Data Consortium] (a collection of databases etc., see e.g. their [ Catalog page]).

[ CELEX Psycholinguistic Database] (orthographic, phonetic and lexical information on English/German/Dutch words)

[ McWord : An Orthographic Wordform Database] (web site that provides simple ways to extract information from CELEX. Also allows you to generate nonwords with specifiable degrees of approximation to English orthography)

[ MRC Psycholinguistic Database], (orth/phon/lex information on English words, plus imageability ratings; direct access to search engine [ here)

[ SUBTLEXus: word frequencies based on American English] (movie subtitles)

[ ARC Nonword Database]

[ Bristol Norms] (Age-of-acquisition, imageability and familiarity)

[ English Lexicon Project] (orth/phon/lex information on English words, plus Lexical Decision and Reading Latencies, HAL Frequencies etc.)

[ British National Corpus] (English words and phrases)

[ Wordsmith] (anagrams, dictionary etc.)

[ Princeton WordNet] (Conceptual-semantic networks)

[ Edinburgh Word Association Thesaurus] (empirical semantic word association data)

[ Sentence Cloze Probability Norms] (for 498 sentences)

[ Latent Semantic Analysis] (for analysing and comparing texts and documents; more [ here])

[ Affective Norms for English Words]

[ Affective Norms for English Text]

[ Berlin Affective Word List] Affective norms for German words

[ dlexDB Project] German lexical database

[ Google Word Frequencies] Frequencies for sets of ngrams (1 to 5 words) within Google books (over time)

[ Frequencies of word n-grams] (from LDC catalog, see above)

[ University of Florida Free Association Norms] Free word association norms ([ XML version])


Pictures and Objects

[ Snodgrass&Vanderwart Original], and [ Snodgrass&Vanderwart revisited] (visual, semantic and phonological information on line drawings)

[ The International Picture Naming Project] (norms for picture naming in 7 different languages, plus some norms for reading and repetition)

[ HMAX] HMAX model of object recognition by the Riesenhuber lab

[ McRae's Semantic Feature Norms] (norms for living and nonliving basic-level concepts, see [ Paper])

[ Face Recognition] (collection of databases)

[ Images and 3D Objects]


Emotion Research

[ International Affective Picture System (IAPS)] (normative ratings of emotion (pleasure, arousal, dominance) for a set of color photographs (objects and scenes))

[ International Affective Digital Sounds (IADS)]

[ Affective Norms for English Words (ANEW)]

[ Affective Norms for English Text (ANET)]


Speech, Sounds and Noises

[ What they can do with sounds at CNBH] (e.g. musical rain)

[ Noise-Vocoded Speech] (look at bottom for how to do it yourself)

[ Praat Software] (for analysing and manipulating speech sounds)

[ STRAIGHT] (speech manipulation tool)


Reaction Time Distributions

[ Ex-Gaussian in Matlab]

[ Diffusion Model Analysis Toolbox] (DMAT, in Matlab; look here for [ internal intro])


Matlab Tools

[ Presentation about Optimising Matlab Code] by Rob Young (look for more links inside)