The process by which humans recognize objects is complex and involves various cognitive processes. One theoretical approach to object recognition is the template matching theory, which suggests that objects are recognized by matching them to stored visual templates or representations in memory. However, this theory has been largely replaced by alternative theories, such as the feature detection theory and the recognition-by-components theory, which suggest that object recognition involves detecting and processing the basic features or parts of an object, rather than matching it to a stored template. In reality, object recognition likely involves a combination of various cognitive processes, including feature detection, context, and memory. The brain integrates various sensory information from the environment and combines it with stored knowledge and expectations to recognize objects. The exact process by which this occurs is still the subject of ongoing research in cognitive psychology and neuroscience.