Cognative Area Flashcards
Revision for OCR A level psychology Cognative area
Principles of Cognative Area
The effect of internal mental prosesses on a persons behaviour
Conspepts of Cognative Area
memory / attention / inatentional blindness / inatentional barrier / Schemas / Context dependent memory / Cocktail party
Core Studies of the Cognative area
Moray: Dicotic Listening
Loftus & Palmer: Reconstructed memory
Simons & Chabris: Innatentional blindness
Grant et al: Context dependent memory
What is the background to Loftus & Palmer?
Bartlett believed that memory isn’t played back exactly as it happened: memory is reconstructed based on past experiences & beliefs about what should happen (Schemas).
What was the aim of Loftus & Palmer’s study?
The aim of the study was to investigate the effects of language (leading questions) on memory.
Describe the sample and conditions of Experiment 1.
Sample: 45 students.
Conditions: 5 conditions.
Number of students per condition: 9.
Briefly describe the procedure of Experiment 1.
Participants watched a video clip from the Seattle police department. They then completed a questionnaire which included smoke screen questions to hide the aim and a critical question about the speed of the cars: ‘How fast were the cars going when they ____ each other’ with the verb being either Smashed, Collided, Bumped, Hit, or Contacted.
What was the independent variable (IV) in Experiment 1?
The independent variable (IV) in Experiment 1 was the verb in the critical question.
What was the dependent variable (DV) in Experiment 1?
The dependent variable (DV) in Experiment 1 was the estimated speed (mph).
What were the mean estimated speeds for the verbs ‘Smashed’ and ‘Contacted’ in Experiment 1?
Smashed: 40.8 mph
Contacted: 31.8 mph
What is one explanation for the results of Experiment 1 regarding ‘response bias’?
One explanation is response bias - participants might have been unsure of the exact speed (e.g., between 30 and 40 mph) and the verb ‘Smashed’ biased them to a higher number.
What is another explanation for the results of Experiment 1 regarding the effect of the verb on memory?
Another explanation is that the verb used affected memory - ‘smashed’ made participants remember the event to be more serious.
Describe the sample and conditions of Experiment 2.
Sample: 150 students.
Conditions: 3 conditions.
Number of students per condition: 50.
Briefly describe the initial procedure of Experiment 2.
Participants watched a video clip from the Seattle police department. They then completed a questionnaire which included smoke screen questions to hide the aim and a critical question about the speed of the cars: ‘How fast were the cars going when they ____ each other’ with the verb being either Smashed or Hit, or a Control group who were not asked about speed.
What happened one week after the initial procedure in Experiment 2?
Participants completed a new questionnaire with 10 questions, including the critical question: ‘Did you see any broken glass’.
What was the independent variable (IV) in Experiment 2?
The independent variable (IV) in Experiment 2 was the verb in the critical question (hit / smashed / not asked about speed).
What was the dependent variable (DV) in Experiment 2?
The dependent variable (DV) in Experiment 2 was if they remembered seeing glass (no glass).
What were the results regarding the number of participants who reported seeing broken glass in each condition of Experiment 2?
Smashed: 16 participants reported seeing broken glass.
Hit: 7 participants reported seeing broken glass.
Control: 6 participants reported seeing broken glass.
What is one discussion point from Experiment 2 regarding the effect of questions asked after an event on memory?
One discussion point is that questions asked after the event can cause reconstructed memory.
What is another discussion point from Experiment 2 regarding the effect of verbs on witness estimation?
Another discussion point is that verbs can affect witness estimation of speed & if they saw glass.
What research provided the background for the Simons & Chabris study on inattentional blindness?
The background to Simons & Chabris’ research was Neisser (1970) research, which involved a video of 2 teams passing a basketball, during which a woman with an umbrella crosses the scene. In Neisser’s study, 22 - 28 participants failed to see her, demonstrating sustained inattentional blindness. Neisser’s video was made transparent by imposing 3 videos together.
Neisser’s research is foundational in understanding inattentional blindness.
What were the aims of Simons & Chabris’ study?
Simons & Chabris aimed to determine if an opaque video would have the same effect as Neisser’s transparent video. They also wanted to investigate if inattentional blindness is affected by other factors such as the nature of the event, what participants are focused on, and the difficulty of the task.
This research expands on the concept of inattentional blindness.
What was the sample size and composition in the Simons & Chabris study?
The sample consisted of 192 undergraduates at Harvard University, with 12 participants in each of the 16 conditions.
This diversity in conditions helps ensure robust data.
Briefly describe the procedure of the Simons & Chabris study.
Participants watched a short video lasting 75 seconds and were asked what they had seen. The study used 16 conditions based on 4 independent variables (IVs): opacity (opaque or transparent), the unexpected event (woman with an umbrella or gorilla), the shirt colour of the team being followed (black or white), and the task difficulty (easy - any passes, or hard - separate counts for aerial and bounce passes). The dependent variable (DV) was whether they saw the unexpected event.
This methodology allowed for a thorough analysis of inattentional blindness.