PSYB57-10W-W04 Representation and Knowledge in Long-Term Memory
Define what knowledge is and how it leads to inferences during perception (pp. 148-151).
Knowledge is often thought of as constituting particular bodies of facts, techniques, and procedures that
We assign a perceived entity to a category, categorization allow us to draw inferences to allow us to
derive information from knowledge of that group.
Language requires knowledge.
Discuss how a representation must be intentional and carry information (pp. 152-153).
Knowledge relies on representations.
-representation is a physical state that stands for an object, event or concept. It also carries
information of what they stand for.
Intentional Criterion: A representation must be constructed intentionally to stand for something else.
-brain is designed to store information even at unconscious levels.
Information-carrying criterion: A representation must carry information about what it stands for.
-the ability to recall details
-use these detailed memory to categorize new objects
Identify the four possible formats for representations (pp. 153-166).
1. Format: the types of its code, how elements make up a representation, how these elements are
arranged. Also relies on characteristics of the process that operate on them to extract information.
2. Modality Specific: Representation make use of perceptual or motor systems
3. Amodal: Representation residing outside the perceptual and motor modalities
4. Content: the information it conveys.
Understand how images are modality-specific, and what neurological evidence is available to
support that claim (pp. 153-160).
Visual information from images are stored like photos that are captured by a digital camera.
An image has three elements, which taken together determine its content: a spatiotemporal window,
storage units, and stored information.
1. spatiotemporal window, scenes are captured one at a time, and are limited to an area (window).
2. storage units, can be compared with the pixels of a digital camera.
3. storage information, collective information specifies the content of the image.
Pattern of brain activation on brain’s surface roughl depicts the shape of the stimulus.
- pattern of activation forms a topographical map