Chapter 4 Flashcards
we actively select and process a limited amount of information from all of the information captured by our senses, our stored memories, and our other cognitive processes
Attention
the feeling of awareness and the content of awareness, some of which may be under the focus of attention
Consciousness
a framework to explain how people pick out the important stimuli embedded in a wealth of irrelevant, distracting stimuli.
Signal-detection theory
Give some examples signal- detection theory
Detecting an emergency vehicle’s siren in the background noise of a busy city street, Parents monitor their children for signs of distress, and When a person listens to music at a party, they use SDT since they can distinguish the music from all the talking.
SDT can be discussed in the context of
attention, perception, or memory
refers to a person’s ability to attend to a field of stimula- tion over a prolonged period, during which the person seeks to detect the appearance of a particular target stimulus of interest.
Vigilance
refers to a scan of the environment for particular features—actively looking for something when you are not sure where it will appear
Search
Search is made more difficult by ________ , non-target stimuli that divert our attention away from the target stimulus.
Distracters
we look for just one feature (e.g., color, shape, or size) that makes our search object different from all others
Feature search
we have to combine two or more features to find the stimulus we’re looking for.
conjunction search
we first analyze individual features of an object and subsequently integrate those features into the object.
Treisman’s Feature Integration Theory.
This theory explains why it is relatively easy to conduct feature searches and relatively difficult to conduct conjunction searches
Feature integration theory
the process that allows an individual to select and focus on a particular stimulus for further processing while simultaneously suppressing, ignoring, or minimizing other stimuli that are distracting or irrelevant
Selective attention
refers to the challenge of focusing on a single auditory source, like a conversation, in an environment with multiple competing sounds, such as a busy party
Cocktail party problem
a term used in psychology and acoustics, referring to the simultaneous delivery of different stimuli to each ear.
dichotic presentation