Schizophrenics are more likely to rely on auditory cues than visual cues in speech perception. Common elands communicate via gestures, vocalizations, scent cues and display behaviors. The indigo bunting communicates through vocalizations and visual cues. Albert Mehrabian studied the nonverbal cues of liking and immediacy. A hypothesis states that females reject males by olfactory cues rather than visual cues. Depth perception arises from a variety of depth cues. Attachment and jealousy can be triggered by the same perceptual cues in adults, too. Police dogs must remember several verbal cues and hand gestures. The autokinetic illusion occurs at night or in conditions with poor visual cues. They explained these results as a product of contextual cues, namely the costumes. They argued four factors contribute to learning&colon; drives, cues, responses, and rewards. Chemical cues or pheromones are also important in communication. Many traditional Lincoln styling cues were heavily reworked or abandoned completely. These are often dependent upon environmental cues. Sounds produced by billiard cues and trays of cutlery can be heard in the song.