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Rods There are two types of receptor cells in the human eye; the cones and the rods. The rods are the receptors …

Reversible Figure A reversible figure is an ambiguous two-dimensional drawing that represents a three-dimensional object in such a way that it can …

Reversibility In Piaget’s theory of cognitive development, the third stage is called the Concrete Operational stage. During this stage, which occurs from …

Reuptake Reuptake refers to the process in the brain of neurons to retrieve chemicals that were not received by the next neuron. …

Retroactive Interference Retroactive interference is when a person has difficulty recalling old information because of newly learned information. For example, you may …

Retroactive Amnesia Retroactive amnesia is the inability to retrieve or recall information before the traumatic event. An individual who has suffered a …

Retrieval Retrieval is the process in which information in your memory can be recalled. Information concerning events, images and feelings are all …

Retinal Disparity Did you know that the image your left eye perceives is not exactly the same as the image your right …

Retina The retina is the area in the back of the eye that contains your rods and cones. Rods help you detect …

Reticular Formation The reticular formation is a portion of the brain that is located in the central core of the brain stem. …