Something that is ineffective does not produce the desired result or outcome. In the context of Feature Detection models and gestalt principles, it means that these models do not adequately explain or account for the principles of how our brain perceives and organizes visual information.
Related terms
Gestalt Principles: These are rules that describe how our brains organize visual stimuli into meaningful patterns or wholes.
Perceptual Organization: Refers to how our brains group individual sensory inputs into coherent and organized perceptions.
Top-down Processing: This term refers to using preexisting knowledge or expectations to influence perception and interpretation of sensory information.