that the striatum plays a role in attention and reward anticipation, both of which are important in the provocation of curiosity. Precuneus The precuneus is a region of the brain that is involved in attention, episodic memory, and visuospatial processing. There has been a correlation found between the amount of grey matter in the precuneus and levels of curious and exploratory behaviors; suggesting that the precuneus density has an influence on levels of curiosity. Memory and learning Memory plays an important role in the understanding of curiosity. If curiosity is the desire to seek out and understand unfamiliar or novel stimuli, one's memory is important in determining if the stimulus is indeed unfamiliar. Memory is the process by which the brain can store and access information. In order to determine if the stimulus is novel, an individual must remember if the stimulus has been encountered before. Thus, memory plays an integral role in dictating the level of novelty or unfamiliarity, and the level of need for curiosity. It can also be suggested that curiosity can affect memory. As previously mentioned, stimuli that are novel tend to capture more of our attention. Additionally, novel stimuli usually have a reward value associated with them, the anticipated reward of what learning that new information may bring. With stronger associations and more attention devoted to a stimulus, it is probable that the memory formed from that stimulus will be longer lasting and easier to recall, both of which facilitate better learning. Hippocampus and the parahippocampal gyrus The hippocampus is important in memory formation and recall and therefore instrumental in determining the novelty of various stimuli. Research suggests the hippocampus is involved in generating the underlying motivation to explore for the purpose of learning. The parahippocampal gyrus (PHG), the area of grey matter surrounding the hippocampus, has recently been implicated in the process of curiosity. This finding suggests that the PHG may be involved in the amplification of curiosity more so than the primary induction of curiosity. Amygdala The amygdala often is associated with emotional processing, particularly for the emotion of fear, as well as memory. It is suggested the amygdala is important in processing emotional reactions towards novel or unexpected stimuli and the induction of exploratory behavior. This implies a potential connection between curiosity levels and the amygdala. However, more research is needed on direct correlation. Early development Jean Piaget is considered to be