Information, Communication and Signals Flashcards
‘Qualitative approach’ to information and communication
- sign theory
2.descriptive
3.about semiograms, ethograms, etc.
3about structure (syntax), meaning (semantics), context (pragmatics), expression (prosodics)
4.embodied, situated, etc.
‘Quantitative approach’ to information and communication
- information theory
- statistical (SDT)
- about models, formulas, units of info (bits)
- about entropy, uncertainty, transmission, redundancy, channel coding
- network (circuits), noise
is information processing cognitive? why or why not?
-can be thought of as cognitive, but there is danger in doing so-decisions may be thoughtful or just choice/ response (A or B)
errors can be measured in information processing by looking at what? (2)
- Cognitive dimension
- sensory/ perceptual, attentional, mnemonic (acquisition, storage and retrieval of info), decisional - Affective/ conative (motivational) dimension
- fear, rage, hunger, etc.
what is present when a channel is noisy?
Entropy and uncertainty, potential for error
channel coding
-finding optimal codes to transmit data over a noisy channel (noise= interference, channel= a route)
Equivocation (error type)
- stimulus uncertainty
- uncertainty of stimulus given the response
Ambiguity (error type)
- Response uncertainty
- uncertainty of response given the stimulus
how can the sender deal with noise? (3)
- adjust/ change behavior
- sign/ signal itself, the frequency/ intensity, the redundancy
- sender controls the stimulus - adjust/change the channel
- channels are generally noisy- can take advantage sometimes - adjust/change the context/ environment (social or physical)
- can be simplistic
- ex. burying scent mark can make more salient
channel
=sensory and physical modality that allows signal to be transmitted
-environment that carries signal (ex. wind)
proximate (optimal) factors in communication
- learning
- motivation
- sensation/perception
- affect (emotion)
- sensorimotor integration
- neural networks
- physiological and biochemistry
Ultimate (distal) factors in communication
=species strategies to deal with constraints
- sharing? (altruism)
- manipulation? (deception)
- origin/ evolution of signs/ signals
- optimality theorizing
- ritualization (usually innate and evolved)
- mate attraction
- individual species recognition
code
-info contained in signal
signal + context
message
what sign encodes about the sender (what animal produces)
meaning
what receiver makes of message (where misinterpretations can happen)