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Related Concept Videos

Encoding01:19

Encoding

Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
Retrieval01:12

Retrieval

Retrieval is the process of getting information out of memory storage and back into conscious awareness. This ability is essential for daily tasks like brushing hair and teeth, driving to work, and performing job duties. Retrieval occurs in three ways: recall, recognition, and relearning.
Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
Explicit Memories01:27

Explicit Memories

Explicit memories, also known as declarative memories, are consciously remembered, recalled, and reported. Studying for a chemistry exam involves material that will become part of explicit memory. There are two types of explicit memory: episodic and semantic.
Episodic memory contains information about personally experienced events and is reported as a story. An example of episodic memory is recalling a birthday celebration. This type of memory includes the what, where, and when of an event, as...
Chunking and Rehearsal in Sensory Memory01:22

Chunking and Rehearsal in Sensory Memory

Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of information more...
Serial Position Effect01:03

Serial Position Effect

The serial position effect is a cognitive phenomenon where individuals are more likely to recall the first and last items in a list compared to those in the middle. This effect is divided into the primacy effect and the recency effect. The primacy effect is observed when the initial items in a list are remembered better. This occurs because these items are rehearsed more frequently or receive more elaborative processing, allowing them to be encoded into long-term memory more effectively. For...
Eyewitness Memory01:22

Eyewitness Memory

Eyewitness memory refers to the recollection of events by someone who has directly witnessed them, often serving as critical evidence in legal settings. This type of memory is commonly used in criminal cases where a witness describes details like a suspect's appearance, clothing, or behavior during a crime. However, despite its perceived reliability, eyewitness memory is prone to significant errors.
One such error is memory distortion, which occurs because human memory does not function like a...

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The Deese-Roediger-McDermott (DRM) Task: A Simple Cognitive Paradigm to Investigate False Memories in the Laboratory
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Differences in encoding for free recall vs. recognition.

J W Hall1, L R Grossman, K D Elwood

  • 1Department of Psychology, Northwestern University, 60201, Evanston, Illinois.

Memory & Cognition
|February 3, 2011
PubMed
Summary
This summary is machine-generated.

Test expectancy influences memory performance. Expecting a recall test enhances memory recall and recognition, especially with sufficient study time and practice, suggesting quantitative encoding differences.

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Area of Science:

  • Cognitive Psychology
  • Human Memory

Background:

  • Memory performance is influenced by various factors, including study conditions and retrieval expectations.
  • Understanding how test expectancy affects encoding and retrieval is crucial for memory research.

Purpose of the Study:

  • To investigate the impact of test expectancy on memory for unrelated words across three experiments.
  • To determine if preliminary practice and study time moderate the effects of test expectancy on recall and recognition.

Main Methods:

  • Three experiments were conducted manipulating test expectancy (recall vs. recognition).
  • Variables included preliminary practice, study presentation (free vs. paced), and study duration (long vs. short).
  • Memory performance was assessed using recall and recognition tests.

Main Results:

  • Test expectancy for recall superior to recognition, particularly with prior practice and longer study times.
  • Free study improved memory over paced presentation but did not interact with test expectancy.
  • Expectancy effects were less pronounced with shorter study periods.

Conclusions:

  • Test expectancy significantly impacts memory encoding and retrieval, favoring recall when a recall test is anticipated.
  • The observed differences in memory performance appear to be quantitative, related to encoding depth or strategy.
  • Memory research should consider test expectancy as a key variable influencing performance outcomes.