However, this apparent advantage is countered or paralleled by factors such as sound transmission in various habitats [43], sender and receiver perception [44], female preference [45], species recognition [46], and background noise [47].
Another approach to answering this question is to test receiver perception.
Across-species quantification of multimodal signals in spiders (Hebets 2008), fish (Van Staaden and Smith 2011), and anurans (Taylor et al. 2011a) provide evidence for response variations and highlight differences in signal dominance and receiver perception.
Therefore, the receiver's perception of the signal depends on the characteristics of the ambient illumination, which, in turn, depends on such variables as time of year, time of day, amount of cloud cover, amount of vegetation between the light source and the optical signal, and spectral reflectance of the habitat.
The importance of call components for potential individual recognition processes remains unknown, and needs to be addressed in future playback experiments testing the receiver's perception of differences in specific call parameters.
To see how the same information can influence the receiver's perception of clinical situations in different ways, suppose that the physician in the previous example said simply, 'Oh, and he was just a bit dry overnight', which identifies the same issue (hypovolemia) but with a different emphasis on the uncertainty and its diagnostic and treatment implications.
In other words, by knowing the identity of the sender and being familiar with the sender's acoustic range, the receiver could improve perception of signals.
Key Findings and Conclusions The program has reached most of the target groups, as measured by monthly VTDL received, age range of receivers and mothers' perception on sufficiency of VTDL supply.
Hormones also act on the sensory systems of receivers to regulate the perception and responses to communication signals.
However, SFGS is promising in yielding evener image quality and smoother video perception at the receiver side when the channel bandwidth is limited.
After expression, a receiver individual detects this product (perception component) and could then alter its behavior, based on the newly acquired information (action component).
