tactile memories. Implicated in most of these studies is the primary somatosensory cortex. More recent studies have also investigated a broader selection of participants, allowing for the discovery of an intact haptic memory in infants. Neuroanatomy Tactile memories are organized somatotopically, following the organization of the somatosensory cortex. This means that areas close on the body surface receive nervous signals from areas that are close together on the brain surface. Several distinct areas of the parietal lobe are responsible for contributing to different aspects of haptic memory. Memory for the properties of stimuli such as roughness, spatial density, and texture involves activation of the parietal operculum. Properties of stimuli such as size and shape, as detected by touch receptors in the skin, are stored in the anterior part of the parietal lobe. Memory for spatial information such as the location of stimuli involves the right superior parietal lobule and temporoparietal junction. Additional neuroimaging data has been provided by studies using microelectrodes implanted in the somatosensory cortex of monkeys. When performing a delayed match to sample task with objects of identical dimensions but different surface features, activity is observed in somatosensory neurons during perception and in the short-term memory for tactile stimuli. According to a study done by Bruce V. DiMattia, Keith A. Posley and Joaquin M. Fuster, it was found that monkeys were quite capable of concurrent Visual-to-Haptic as well as Haptic-to-Visual crossmodal matching of objects by size, shape and texture. It was also discovered that they were more adept at performing cross modal matching in the Visual-to-Haptic direction. Development Memory is important in infancy as it forms the basis for more complex procedures such as learning and reasoning. Studies of haptic memory in infants is particularly useful because it allows researchers to study the more perceptual representation of information as opposed to verbal or semantic aspects. Haptic abilities develop in stages in infants: The last two decades have allowed researchers to study the sensory system of infants which gives an insight to the initial stages of thinking, deciding and reasoning in a human brain. Newborn: Haptic ability develops in the mouth, as it is essential for feeding. 1 month of age: Recognition of texture and shape 2 months of age: Recognition of familiar objects after 30 second delay 4 months of age: Recognize familiar objects after 2 minute delay Evidence of haptic memory was discovered in infants as young