![]() ![]() However, both of these packages are available only on the Windows ® platform and contain no source code. Both E-prime ® (Psychology Software Tools, Inc.) 1 and Presentation ® (Neurobehavioral Systems, Inc.) 2 are widely used suites for neuropsychological research. ![]() Several commercial software platforms are currently available for auditory research. However, with the ubiquity and flexibility of modern computing, flexible PC-based platforms are now available for the control of rigorous auditory perceptual experiments. As such, auditory behavioral experiments have historically required dedicated, highly precise hardware for stimulus delivery and response collection. Psychoacoustic studies typically involve the precise measurement of detection/discrimination thresholds that approach the limits of listeners’ hearing sensitivity. Controlled stimulus manipulations are used to parametrically evaluate the performance of the sensory–perceptual system. Modern psychoacoustics provides a variety of experimental methodologies to probe the auditory perceptual system with the goal of establishing a link between physical stimuli and their corresponding percepts/sensations. Importantly, the core design of PsyAcoustX is easily modifiable, allowing users the ability to adapt its basic structure and create additional modules for measuring discrimination/detection thresholds for other auditory attributes (e.g., pitch, intensity, etc.) or binaural paradigms. Examples of these measurements are provided including the psychoacoustic phenomena of temporal overshoot, psychophysical tuning curves, and temporal modulation transfer functions. Example behavioral applications are highlighted including the measurement of audiometric thresholds, basic simultaneous and non-simultaneous (i.e., forward and backward) masking paradigms, gap detection, and amplitude modulation detection. The flexibility of the module offers experimenters access to nearly every conceivable combination of stimulus parameters (e.g., probe-masker relations). Detection thresholds can be measured adaptively under basic and complex auditory masking tasks and other paradigms (e.g., amplitude modulation detection) within minutes. Data are automatically logged by stimulus condition and aggregated in an exported spreadsheet for offline analysis. PsyAcoustX provides a flexible platform to generate and present auditory stimuli in real time and record users’ behavioral responses. Here, we describe PsyAcoustX, a new, freely available suite of software tools written in the MATLAB ® environment to conduct psychoacoustics research on a standard PC. For pricing and more information, visit /products/wlan-system.The demands of modern psychophysical studies require precise stimulus delivery and flexible platforms for experimental control. WLAN System Toolbox is available worldwide. ![]()
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