Incidental categorization of spectrally complex non-invariant auditory stimuli in a computer game task

@article{citeulike:1401558, abstract = {This study examined perceptual learning of spectrally complex nonspeech auditory categories in an interactive multi-modal training paradigm. Participants played a computer game in which they navigated through a three-dimensional space while responding to animated characters encountered along the way. Characters' appearances in the game correlated with distinctive sound category distributions, exemplars of which repeated each time the characters were encountered. As the game progressed, the speed and difficulty of required tasks increased and characters became harder to identify visually, so quick identification of approaching characters by sound patterns was, although never required or encouraged, of gradually increasing benefit. After 30 min of play, participants performed a categorization task, matching sounds to characters. Despite not being informed of audio-visual correlations, participants exhibited reliable learning of these patterns at posttest. Categorization accuracy was related to several measures of game performance and category learning was sensitive to category distribution differences modeling acoustic structures of speech categories. Category knowledge resulting from the game was qualitatively different from that gained from an explicit unsupervised categorization task involving the same stimuli. Results are discussed with respect to information sources and mechanisms involved in acquiring complex, context-dependent auditory categories, including phonetic categories, and to multi-modal statistical learning. \©2005 Acoustical Society of America}, author = {Wade, Travis and Holt, Lori L. }, citeulike-article-id = {1401558}, doi = {10.1121/1.2011156}, journal = {The Journal of the Acoustical Society of America}, keywords = {2nd\_order\_stats, auditory\_perception, categorical\_perception, cue\_integration, domain\_specificity, intermodal\_learning, language\_acquisition, language\_organization, learning\_constraints, non\_phonemic\_encoding, physical\_constraints, probabilistic\_perception, speech, statistical\_learning}, number = {4}, pages = {2618--2633}, posted-at = {2007-06-20 21:26:18}, priority = {0}, publisher = {ASA}, title = {Incidental categorization of spectrally complex non-invariant auditory stimuli in a computer game task}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=JASMAN000118000004002618000001\&idtype=cvips\&gifs=yes}, volume = {118}, year = {2005} }

TY - JOUR ID - citeulike:1401558 L3 - citeulike-article-id:1401558 TI - Incidental categorization of spectrally complex non-invariant auditory stimuli in a computer game task JF - The Journal of the Acoustical Society of America VL - 118 IS - 4 SP - 2618 EP - 2633 PB - ASA N2 - This study examined perceptual learning of spectrally complex nonspeech auditory categories in an interactive multi-modal training paradigm. Participants played a computer game in which they navigated through a three-dimensional space while responding to animated characters encountered along the way. Characters' appearances in the game correlated with distinctive sound category distributions, exemplars of which repeated each time the characters were encountered. As the game progressed, the speed and difficulty of required tasks increased and characters became harder to identify visually, so quick identification of approaching characters by sound patterns was, although never required or encouraged, of gradually increasing benefit. After 30 min of play, participants performed a categorization task, matching sounds to characters. Despite not being informed of audio-visual correlations, participants exhibited reliable learning of these patterns at posttest. Categorization accuracy was related to several measures of game performance and category learning was sensitive to category distribution differences modeling acoustic structures of speech categories. Category knowledge resulting from the game was qualitatively different from that gained from an explicit unsupervised categorization task involving the same stimuli. Results are discussed with respect to information sources and mechanisms involved in acquiring complex, context-dependent auditory categories, including phonetic categories, and to multi-modal statistical learning. ©2005 Acoustical Society of America KW - 2nd_order_stats KW - auditory_perception KW - categorical_perception KW - cue_integration KW - domain_specificity KW - intermodal_learning KW - language_acquisition KW - language_organization KW - learning_constraints KW - non_phonemic_encoding KW - physical_constraints KW - probabilistic_perception KW - speech KW - statistical_learning AU - Wade, Travis AU - Holt, Lori PY - 2005/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JASMAN000118000004002618000001&idtype=cvips&gifs=yes ER -