Cog Psy Final Quiz Flashcards
What is long-term memory (LTM)?
The “archive” of information about past events and knowledge learned, ranging from moments ago to distant memories.
How does LTM interact with short-term/working memory (STM/WM)?
Information flows from LTM to STM/WM for active use (retrieval) and from STM/WM to LTM for storage (encoding).
What is the serial position curve?
A distinction between STM and LTM, showing better recall for words at the beginning (primacy effect) and end (recency effect) of a list.
What causes the primacy effect?
Items at the beginning of a list are rehearsed more frequently, making them more likely to enter LTM.
What causes the recency effect?
Items at the end of a list are still in STM, making them easier to recall.
What is coding in memory?
The form in which stimuli or experiences are represented in the mind, such as visual, auditory, or semantic coding.
What is visual coding?
A mental representation in the form of a visual image (e.g., visualizing a painting you saw).
What is auditory coding?
A mental representation in the form of a sound (e.g., replaying a song in your mind).
What is semantic coding?
A mental representation in terms of meaning (e.g., recalling the plot of a novel).
What did Wickens et al. (1976) find about semantic coding in STM?
Proactive interference occurs when previously learned information interferes with new learning, and switching categories reduces this interference.
What did Sachs (1967) find about semantic coding in LTM?
Participants remembered the meaning of sentences better than the exact wording, showing that LTM coding emphasizes meaning.
What does evidence from HM suggest about STM and LTM?
HM had intact STM but impaired LTM, showing separate mechanisms for STM and LTM.
What does evidence from KF suggest about STM and LTM?
KF had impaired STM but functional LTM, suggesting that STM and LTM rely on different brain mechanisms.
What did Ranganath & D’Esposito (2001) find about the hippocampus?
The hippocampus, traditionally associated with LTM, also plays a role in STM, as shown by its activation during short delays.
What is episodic memory?
Memory for specific personal experiences, involving mental time travel and “self-knowing.”
What is semantic memory?
Memory for general knowledge, facts, and concepts that does not involve mental time travel.
What did Tulving (1985) propose about episodic and semantic memory?
Tulving proposed that episodic and semantic memory are distinct types of explicit memory.
What evidence separates episodic and semantic memory?
Patient KC had no episodic memory but intact semantic memory, while patient LP had impaired semantic memory but intact episodic memory (double dissociation).
What is autobiographical memory?
Memory for specific experiences that includes both episodic (events) and semantic (facts) components.
How does semantic memory influence autobiographical memory?
Semantic knowledge shapes how events are experienced, which in turn influences the episodic memories formed.
What did Westmacott & Moscovitch (2003) find about autobiographical memory?
Recall was better for famous names with personal significance, showing how episodic experiences enhance semantic memory.
What happens to episodic and semantic memory over time?
Episodic details fade, leaving only semantic knowledge (semanticization of remote memories).
What is the remember/know procedure?
A method to differentiate episodic (recollection) and semantic (familiarity) memory.
What is procedural memory?
Memory for actions and skills, performed without conscious awareness (e.g., riding a bike).