StimuliApp

StimuliApp facilitates presentation of visual and auditory stimuli and execution of psychophysical tests on iOS and iPadOS devices to measure perceptual thresholds and sensory processing.

Key Features:

• Diverse stimulus templates: Includes patches, gradients, gratings, checkerboards, random-dots, texts, tones, and auditory noise for generating standard psychophysical stimuli.
• Multimedia stimulus presentation: Supports presentation of images, videos, and audio files stored locally on the device.
• High temporal precision: Provides precise timing performance suitable for experiments requiring high temporal accuracy and measurement of perceptual thresholds.
• GPU-accelerated rendering via Metal: Utilizes the Metal framework to access the GPU for efficient rendering and reduced latency.

Scientific Applications:

• Field and mobile psychophysics: Enables psychophysical experiments outside the laboratory using iOS/iPadOS device portability.
• Temporal precision studies: Suitable for experiments investigating perceptual thresholds and sensory processing that require high temporal accuracy.
• Visual and auditory stimulus testing: Supports both visual paradigms (e.g., gratings, checkerboards, random-dot stimuli) and auditory paradigms (e.g., tones, auditory noise, audio file playback).

Methodology:

Developed natively for iPadOS and iOS and using the Metal framework to access the device GPU for efficient stimulus rendering, minimal latency, and exceptional timing performance.