Author Topic: OCR AS Psychology Notes- 15 Studies  (Read 5495 times)

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #15 on: June 09, 2010, 11:23:03 am »
ROGER SPERRY- SPLIT-BRAIN PATIENTS

The corpus callosum is a bundle of nerve fibers that connect the two hemispheres allowing information to be transferred between them.

Left Hemisphere------> Language, and reasoning ability
Right Hemisphere-----> Spatial awareness

Aim- The aim of the study was to find out what happens when the two hemispheres cannot communicate with each other.

It was a Quasi-Experiment, as he did not manipulate the variables. He used patients that had already undergone the surgery.

Technical Equipment:

Sperry used specially designed apparatus that allowed for information to be presented to just one visual field. The individuals visual field was divided and their hands were screened from their own view. The participant had one eye covered as a control, this prevented eye movement and allowing the two hemispheres to communicate with each other.

Procedure:

-Participants had one eye covered and were told to gaze at a fixation point.
- Slides were projected onto either right or left of the screen at a ver high speed.
- One picture was shown even 0.1 second or faster.
- Below the screen there was a gap so the participant could reach the tray but could not see them or see their own hands.

Results:

-Visual material shown into the Right Visual Field goes to the Left Hemisphere --- Participants could describe this in speech and writing.

-Visual material shown into the Left Visual Field goes to the Right Hemisphere --- Participants insisted they had seen nothing, yes if the image was show again in the R.V.F the participants did not recognise having seen it before. However, they could draw it with their right hand.

-However, when participants were asked to find the object in the tray below which had matched what they has seen on the screen, they could do so.

- Sperry flashed 2 different pictures to the right and left visual field. $ to the left and ? to the right. Participants could draw only $, but reported they had drawn the ?
- Another example was the flashing of composite words like KEY-CASE. They wold produce a key from the tray with their LEFT hand (R.V.F- no lang), but spell the word CASE with their right hand (L.V.F- Controls lang.)

-Objects put in the right hand (R.H- L.V.F) could only be guessed at, even thought participants could find them in the tray.

Conclusions

-Sperry found that language is controlled by the left hemisphere, and the right hemisphere is speechless. The left hemisphere is the dominant side.

-However, right hemisphere does have some understanding. It can do simple arithmetic and it can understand spoken and written words even though they cant express it.

- Right Hemisphere can show emotion. Participants were shown nude pictures into their right hemisphere, participants blushed which shows an appropriate emotional response.

------

-Split brain patients had no IQ changes, nor were their personalities changed.
-They experienced some problems with short term memory, and got tired easily.

"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #16 on: June 09, 2010, 12:16:20 pm »
LOFTUS AND PLAMER- EYEWITNESS TESTIMONY

Aim- The aim of the study was to investigate how information supplied after an event influences a witness's memory for that event.

Method- Two experiments were conducted, with an Independent Measures Design. The IV was the verb used. The DV in the 1st experiment was the participant estimate of the sleep, and the second was how many say broken glass.

Experiment 1:

Participants: 45 Students from the University of Washington.

Procedure: -Particiapnts were shown 7 film clips of automobile accidents.
               -Clips were made as part of a driver safety film
               -Clips ranged from 5-30 seconds in length.
               -After watching, participants were asked:
                        a) To write an account of what they had seen
                        b) To answer some questions. ONE of these questions was the critical question, which was "How fast were the cars
                            going when they hit each other?"

There were 5 conditions in the experiment, with 9 participants being assigned in each condition.
In each condition, the verb in the critical question was changed to either:

a)Hit
b)Smashed
c)Collided
d)Bumped
e)contacted.

The experiment lasted about 90 mins and a different ordering of films was presented to each group of participants.

Results:

Estimated speed by the participants when used different verbs:
Hit - 34.0 m/s
Contacted- 31.8
Bumped- 38.1
Collided- 39.3
Smashed- 40.8

Explanation of Results:
-Results could be die to a distortion in memory of participant due to the verb used.
- Results could be die to demand characteristics, may not have been sure of the speed of the car but estimated in order to fit the expectations of the questioner.

Experiment 2

Aim- The aim of the experiment was the same as experiment 1, but with the additional aim to see if the verbal label did distort the memory, rather than demand characteristics.

Participants: 150 Students

Procedure: - 1 min film which contained 4 second multiple car accident
                - Participants divided into groups of 50

GROUP 1 were asked: How fast were the cars going when they hit each other?
GROUP 2 were asked: How fast were the cars going when they smashed into each other?
GROUP 3 were asked no question about the speed of the vehicles.

A week later, the participants were asked further questions including the critical question. "Did you see any broken glass?"
The question was placed at random on each participant's question paper. There was in fact no broken glass.

Participants with the verb, hit- 14% said there was broken glass.
Participants with the verb, smashed- 32% said there was broken glass.
         

« Last Edit: June 09, 2010, 12:26:32 pm by Roxy.Converse »
"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

elemis

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #17 on: June 09, 2010, 12:18:48 pm »
I like reading this. Very interesting. I might learn soemthing.

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #18 on: June 09, 2010, 12:27:07 pm »
I like reading this. Very interesting. I might learn soemthing.

You learn this, you could take the exam, and get another AS under your belt ;)

"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #19 on: June 09, 2010, 04:30:30 pm »
DAVID ROSENHAN- ON BEING SANE IN INSANE PLACES

Aim- The aim of the study is to test whether sane individuals could be diagnosed as insane and be admitted to psychiatric hospitals.

First Study

Participants:
- Involved 8 sane people attemptiing to gain admission in 12 different hospitals in 5 different states in the USA.
- The sample consisted of a psychology graduate student in his 20s, 3 psychologists, a paediatrition, a painter, a housewife, and Rosenhan himself.
- 5 men and 3 women.

Procedure:

The pseudopatients telephoned for an appointment and on arrival at the admissions office they complained of hearing voices. They said the voice was unfamiliar and of the same sex as themselves, said "empty", "hollow", and "thud". Thus hearing voices is a symptom of schizophrenia.

The patients gave a false name and job, but all other details they gave were true. They were each told they would get discharged once the staff were convinced they were sane, so after being admitted they stop simulating any symptoms of abnormality. When asked how they were feeling by the staff, they said they were fine, and no longer experiencing symptoms.

The study is a field Experiment. The IV was the made up symptom, and the DV was whether they were admitted into hospital or not.
The study also included participant observation as the patients kept written records of the ward and how it was operated, as well as how they were treated.

Results:

-None of the peseudopatients were detected. They all remained in hospital for 7 to 52 days (avg. 19 days)
-Some real patients detected their sanity (35/118 patients voiced their suspicions)
-Other said things sch as " You're not crazy, you're a journalist or a professor checking up on the hospital."


Second Study

Procedure:
Rosenham created a lot of attention and as a result hospitals attempted to improve their procedures. He carried out a follow up investigation 3 years later.

In this study, The hospital staff were told that over the next 3 months one or more pseudo patients would attempt to gain admission. Staff members were told to rate on a 10 point scale each new patient as to the likelihood of them being a pseudo patient.
Rosenhan in fact sent NO pseudo patients

Results:

Number of Patients judged ------> 193
Number of patients confidently judged as pseudo patients by at least one staff member-------> 41
Number of patients suspected by pne psychiatrist ------> 23
Number of patients suspected by one psychiatrist AND one staff member ------> 19

Conclusion:

Rosenhan claims that the studies demonstrate that psychiatrists cannot reliably tell the difference between people who are sane and those who are insane. The main experiment illustrated a faluire to detect sanity, and the second experiment demonstrated failure to detect insanity.

"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #20 on: June 09, 2010, 05:23:27 pm »
SIMON BARON-COHEN- AUTISM

Aims  -The aim of the study was to develop a test for advanced theory of Mind in adults with Autism
        -They hypotheses was that adults with ASD can't interpret states of mind from "reading eyes".

Participants:

- 3 groups of participants
a) ASD, 16 participants, high- functioning autism, 12 with Aspergers, 13 male, 3 female, normal intelligence (IQ = 105)
b) Normal, 50 pariticipants, 25 female, 25 male, matched on age & intelligence. No psychiatric history.
c) 10 Tourette's patients, 8 male, 2 female, matched on age&intelligence.

Method:

Natural Experiment with Matched Pair Design
DV= Performance on eye task

Four tasks presented. Eye Task, Strage stories, gender Identification, and basic emotion Task.

TO BE CONTINUED....
"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #21 on: June 09, 2010, 06:34:00 pm »
SAMUEL AND BRYANT - CONSERVATION

Aim- The aim of Samuel and Bryant's Study was to challenge Piaget's findings by altering the method used by Piaget.

Particiapnts- 252 boys and girls between the ages of 5 and 8.5
                - They were allin schools and playgroups in Devon.
                - They were divided into 4 age groups of 63 children each.
                - Each group was divided into 3 subgroups which underwent a different condition.

Procedure:  The three conditions were:

1. Standard:- This is the traditional two question conservation task as carried out by Piaget. The child is asked about the size of the object before and after the shape was changed.

2. One Judgement: - This is a conservation task like the original, but this time with only one question asked, the post-transformation question. That is, the child is asked only once about the size of the object and this is after the transformation has taken place.

3. Fixed Array Control:- In this condition, the child saw no transformation and just saw the objects after thethey had been changed and not before. The purpose of this 3rd condition was to ensure that children who answered the post transformation question in the previous conditions, did so by bringing over information from the pre-transformation display.

------

Three different types of material used for the conservation tasks:

a- Mass: In this task, the children in condition1 and 2 were shown 2 identical playdoh cylindrical shapes. The transformation was to squash one of these shapes so that it becomes the shape of a sausage. Children were then asked to compare the cylinder and the sausage. The children in condition 3 also made this comparison without seeing the first display.

b- Number:- In this task, children in condition 1 and 2 were shown 2 equal rows of counters of equal length arranged side-by-side in one-to-one correspondence. The rows contained 6 counters. Then one row was spread out or bunched up. The condition 3 chuldren only saw the post transformation displays.

c- Volume:-In this task, children in conditions 1 and 2 were first shown 2 identical glasses with the same amounts of liquid. The liquids from one glass was poured into a narrower one or a shallow wider one. The condition 3 children only saw the post transformation displays.

Each child was given 4 trials
3 IV's - The 3 conditions, the 4 age groups, and the 3 materials.
DV- was the number of errors made by the children

Results:

The researchers recorded the number of errors children made in the tests,

1- As predicted by S&B, children found  the one judgement task significantly easier than the standard conservation task and the fixed- array control. This was true of all 3 materials.

2- There was a significant difference between the age groups, with older groups doign consistently better than the younger.

3- The children made fewer errors on the number task compared with the other two tasks.

 


« Last Edit: June 09, 2010, 07:34:45 pm by Roxy.Converse »
"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #22 on: June 16, 2010, 05:50:51 pm »
FREUD - LITTLE HANS

Aim- The aim of the study was to report the findings of the treatment of a 5 year old boy for his phobia of horses.

Procedure-
Freud used a case study method to investigate Little Hans phobia. The case study was carried out by the boys father who was Freud's supporter and friend.
Freud noted that it was the special relationship between Hans and his father that allowed the analuysis to progress and for the decisions with the boy to be so detailed and so intimate. The first reports of Hans are when he was 3 years old.

Results

Little Hans and his 'widdler' - When he was 3, Little Hans developed an interest in his 'widdler' (penis), and also those of other people. For example on one occasion he asked "Mummy, have you got a widdler too?"

Hans, like all small children, had an interest in that part of his body he called is widdler. He reasoned that this organ was a key distinction between animate and inanimate things. Hans observed that animals had big ones espcially an animal like a horse. He assumed that both his parents had big ones because they were fully grown.

The fear of horses"- When Hans was 5, his father write to Freud explaining his concerns about Hans. He described the main problem as: "He is afraid a horse will bite him in the street, and this fear seems somehow connected with his having been frightened by a large penis". Together, Freud and the father tried to understand what the boy was experiencing and undertook to resolve his phobia for horses.
Freud noticed that Hans fear of horses had developed just after he had experienced some anxiety dreams about loosing his mother, and around the time he had been warned about playing with his widdler. Freud argues that Little Hans, enjoyed getting into bed with his mother, had a repressed long for her, and had focused his libido (sexual energy) on her.

One month later, the correspondence revealed that the phobia was much worse. Hans father made a connection between the phobia for horses and his interest for his widdler, so he said to him, " If you don't put your hand to your widdler anymore, this nonsense will get better soon".

The giraffe Dream- Hans anxieties and his phobia continued and he was afraid to go out of the house becaus e of his phobia of horses. Hans told his father a dream he had :
"In the night, there was a big giraffe in the room and a crumpled one. The big one called out because I took the crumpled one away from it. Then it stopped calling out, and I sat on top of the crumpled one."
Freud interpreted the dream as being a reworking of the morning exchanges in the parental bed. Hans enjoyed getting into his parents bed, but his father objected. Both freud and the father believed that the giraffes long neck was a symbol of the large adult penis. However, Hans rejected this idea.

Horses and the Father- Freud suggested that this was a good opportunity to tell Hans that his fear of horses was actually fear of his father. Th eblack around the horses mouth and the blinkers in front of their eyes were symbols for his fathers mustache and glasses. Freud went on to suggest that these are "Priviliges of a grown-up" i.e to have his mothers love.

This revaluation appeared to release Hans and enable him to deal more directly with his phobia.

The resolution- Hans had always had an ongoing fantasy about his own children and how he was going to look after them. One day he was playing a game with these imaginary children and his father asked, "Are your children still alive?". Hans replied that boys couldn't have children, he had been their mummy, but now he is their daddy. This led Freud to conclude that Hans had at least over come his Oedipus Complex and was now able to identify with his father.

At the age of 19, Hans appeared at Freud's consulting room having read his case history, Has confirmed that he had suffered no troubles during adolescence and that he was fit and well. He could not remember the discussions with his father, and described his case study as it being unknown to him.

"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Offline Meticulous

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #23 on: June 16, 2010, 05:52:07 pm »
That's great Roxy.

+rep.

Offline Meticulous

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #24 on: June 16, 2010, 05:52:56 pm »
Wohoo! Increased by2!

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #25 on: June 16, 2010, 05:55:32 pm »
Thanks. I've got loads for to do though. lawl.
"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Freaked12

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #26 on: June 16, 2010, 06:04:09 pm »
FREUD - LITTLE HANS

Aim- The aim of the study was to report the findings of the treatment of a 5 year old boy for his phobia of horses.

Procedure-
Freud used a case study method to investigate Little Hans phobia. The case study was carried out by the boys father who was Freud's supporter and friend.
Freud noted that it was the special relationship between Hans and his father that allowed the analuysis to progress and for the decisions with the boy to be so detailed and so intimate. The first reports of Hans are when he was 3 years old.

Results




I have got to show this to my friends.
We are gonna die today laughing

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #27 on: June 16, 2010, 06:07:20 pm »
I have got to show this to my friends.
We are gonna die today laughing

I think he;\'s stupid. and it's like the lamest, and stupidest study ever ::)
"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Freaked12

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #28 on: June 16, 2010, 06:13:13 pm »
I think he;\'s stupid. and it's like the lamest, and stupidest study ever ::)

its fun  8)..i should perhaps borrow psychology book  .-_-

+rep for wasting your brain cells on this weird crackpot

Offline Ukhti-R

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Re: OCR AS Psychology Notes- 15 Studies
« Reply #29 on: June 16, 2010, 06:17:23 pm »
its fun  8)..i should perhaps borrow psychology book  .-_-

+rep for wasting your brain cells on this weird crackpot

ahahahhaha. =/

lol.

aww. Thanks ! (:
"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]