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Flashcards by lilyquenya, updated more than 1 year ago
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Created by lilyquenya
over 9 years ago
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| Question | Answer |
| Define Perception | The way the brain makes sense of the visual image detected by the eyes |
| Retina | The light-sensitive layer at the back of the eye. It is made up of rods and cones. |
| Rods | Light-sensitive cells in the retina that respond even in dim light. |
| Cones | Light-sensitive cells in the retina that can detect colour. |
| Optic nerve | Bundle of nerve cells that leads out from the retina at the back of the eye. It carries information from the rods and cones to the brain. |
| Name the biological process of seeing and the psychological process of seeing. | Vision - biological process Perception - psychological process |
| Name the points of the: - Pupil - Retina - Optic Nerve | D - Pupil G - Retina J - Optic nerve |
| What travels along the optic nerve? | Nerve impulses from the rods and cones |
| Blindspot | The area of the retina where the optic nerve leaves. It has no rods or cones so cannot detect light. |
| Optic Chiasma | The cross-shape where some of the information from the left and right eye crosses over to pass into the opposite side of the brain. |
| Visual Cortex | The area at the back of the brain that interprets visual information. |
| What is the job of the visual cortex? | To interpret the information from the rods and cones. |
| Depth Cues | The visual 'clues' that we use to understand depth or distance. |
| Monocular depth cues | Information about distance that comes from one eye, such as superimposition, relative size, texture gradient, linear perspective and height in the plane. |
| Binocular depth cues | Information about distance that needs two eyes, such as stereopsis. |
| Size constancy | We perceive an object as the same size even when its distance from us changes. |
| For size constancy, state the d-u-bs and ne-d-s | - Distant things are scaled up to make them seem bigger than the image on the retina (d-u-b) - Nearby things are scaled down to make them seem smaller than the image on the retina (ne-d-s) |
| Relative size | Smaller objects are perceived as further away than larger ones. |
| Texture gradient | An area with a detailed pattern is perceived to be nearer than one with less detail. |
| Height in the plane | Objects closer to the horizon are perceived to be more distant than ones below or above the horizon. |
| Superimposition | A partly hidden object must be further away than the object covering it. |
| Linear perspective | Parallel lines appear to converge (meet) in the distance. |
| Stereopsis | A binocular cue to depth. The greater the difference between the view seen by the left eye and the right eye, the closer the viewer is looking. |
| Gestalt laws | Perceptual rules that organise stimuli |
| In the figure-ground relationship, compared to the ground, the figure is... | - More complex -More symmetrical - Smaller |
| We tend to group things that are similar, such as in: | - Size - Colour - Shape |
| Figure-ground | A small, complex, symmetrical object (the figure) is seen as separate from the background (the ground). |
| Similarity | Figures sharing size, shape or colour are grouped together with other things that look the same. |
| Proximity | Objects which are close together are perceived to be related. |
| Continuity | Straight lines, curves and shapes are perceived to carry on being the same. |
| Closure | Lines or shapes are perceived as complete figures even if parts are missing. |
| What are the three types of illusion? | - Fictions - Ambiguous figures - Distortions |
| Visual illusion | A conflict between reality and what we perceive. |
| Fiction | An illusion caused when a figure is perceived even though it is not present in the stimulus. |
| Illusory Contour | A boundary (edge) that is perceived in a figure but is not present in the stimulus. |
| Motion after-effect | An illusion caused by paying attention to movement in one direction and then perceiving movement in the opposite direction immediately afterwards. |
| Colour after-effect | An illusion caused by focusing on a coloured stimulus and perceiving opposite colours immediately afterwards. |
| Leeper (1935) | Showed participants a picture of a young or old face, then the 'Leeper's lady' illusion. The picture they had already seen affected their perception of the illusion. Participants who had seen an old face identified the old woman first. Those who had seen a young face interpreted the young woman first. |
| Ambiguous figure | A stimulus with two possible interpretations, in which it is possible to perceive only one of the alternatives at any time. |
| Distortion illusion | Where our perception is deceived by some aspect of the stimulus. This can affect the shape or size of an object. |
| Name four distortion illusions | - Ponzo illusion - Muller-Lyer illusion -Hering illusion -Ebbinghaus illusion |
| Name the 5 Gestalt laws | - Figure-ground - Similarity - Proximity - Continuity - Closure |
| Name the 5 monocular depth cues | - Relative size - Texture gradient - Height in the plane - Superimposition - Linear perspective |
| State the name and type of the illusion | Ebbinghaus illusion Distortion |
| State the name and type of the illusion | Rubin's vase Ambiguous figure |
| State the name and type of the illusion. | Leeper's lady Ambiguous figure |
| State the name and type of the illusion. | The Kanizsa triangle Fiction illusion |
| State the name and type of the illusion. | Necker cube Ambiguous figure |
| State the name and type of the illusion. | Hering illusion Distortion |
| State the name and type of the illusion. | Ponzo illusion Distortion |
| Schema | A framework of knowledge about an object, event or group of people that can affect our perception and help us to organise information and recall what we have seen. |
| Perceptual set | The tendency to notice some things more than others. This can be caused by experience, context or expectations. |
| Independent variable | The factor that is changed by the researcher during an experiment to make two or more conditions. |
| Dependent variable | The factor which is measured in an experiment. |
| Palmer (1975) Aim | To find out whether context would affect perception. |
| Bartlett (1932) Aim | To investigate how information changes with each reproduction and to find out why the information changes. |
| Carmichael et al (1932) Aim | To find out whether words shown with pictures would affect the way the pictures were remembered. |
| What was the year of Bartlett? | 1932 |
| What was the year of Carmichael et al? | 1932 |
| What was the year of Palmer? | 1975 |
| Serial reproduction | A task where a piece of information is passed from one participant to the next in a chain or 'series'. Differences between each version are measured. |
| Repeated reproduction | A task where the participant is given a story or a picture to remember. They then recall it several times after time delays. Differences between each version are measured. |
| Palmer (1975) Conclusion | Expectations affect perception. People have a perceptual set based on context which affects how accurately they recognise objects. |
| Bartlett (1932) Conclusion | Unfamiliar material changes when it is recalled. It becomes shorter, simpler and more stereotyped. This may be due to the effect of schema on memory. |
| Carmichael et al (1932) Conclusion | Memory for pictures is reconstructed. The verbal context in which drawings are learned affects recall because the memory of the word alters the way the picture is represented. |
| Reconstructive memory | Recalled material is not just a 'copy' of what we see or hear. Information is stored and when it is remembered it is 'rebuilt', so can be affected by extra information and by ideas (like schemas) we might already have. |
| Experiment | A research method which measures participants' performance in two or more conditions. |
| Experimental (participant) design | The way that the participants are used in different conditions in an experiment. They may all do all conditions or different participants may do each condition. |
| Independent groups design | Different participants are used in each condition in an experiment. |
| Repeated measures design | The same participants are used in all the conditions of an experiment. |
| Hypothesis | A testable statement of the difference between the conditions in an experiment. It describes how the independent variable will affect the dependent variable. |
| Controls | Ways to keep variables constant in all conditions of an experiment. |
| Mode | An average that is the most common score or response in a set. |
| Descriptive statistics | Ways to summarise results from a study. They can show a typical or average score or how spread out the results are. |
| Bar chart | A graph with separate bars. Usually there is one bar for each condition in an experiment. |
| Median | An average that is the middle number in a set of scores when they are put in order from smallest to largest. |
| Mean | An average that is calculated by adding up all the scores in a set and dividing the number by the number of scores. |
| Range | A way to show how spread out a set of results is by looking at the biggest and smallest scores. |
| Ethical issues | Potential psychological or physical risks for people in experiments. |
| Informed consent | An individual's right to know what will happen in an experiment, and its aims, before agreeing to participate. |
| Right to withdraw | A participant's right to leave a study at any time and their ability to do so. |
| Ethical guidelines | Advice to help psychologists solve ethical issues. |
| Eyewitness | Somebody who sees a crime or aspects of a crime scene and who helps the police to find out what has happened or to catch whoever was responsible. |
| Allport & Postman (1945) | Used a picture of two men talking in an underground station in a serial reproduction task. A black man wearing a suit was talking to a white man in overalls, who was holding a razor in one hand and is pointing with the other. In more than half of the reproductions the black man was falsely recalled with the razor and in some he was reported to be 'threatening' the white man with it. These errors could happen if the participants had a schema that linked black people to crime. If this distortion applied to eyewitnesses, it would make them unreliable. |
| Boon & Davis (1987) | They showed participants slides of a violent knife attack by a white man on the London Underground. Some participants then saw two white men fighting, others saw a fight between a black and a white man. When asked to recognise the scene, many participants wrongly chose the image with the black man holding the knife. But they did not make the mistake when asked to describe the situation instead. This shows that some memory tasks are more likely to be affected by schema. For example, when an eyewitness makes a statement they are recalling information and should be quite accurate. But when asked to identify a person in a line-up (a recognition task) they may be less accurate. |
| Tuckey and Brewer (2003) | Found out what people thought was typical of bank robberies. They used this to identify what was in a 'bank robbery schema'. They showed participants a video of a bank robbery that contained three kinds of facts. Ones that: - Fitted the schema; e.g. male robbers, carry bags, escape in a car - Were in the opposite of the schema; e.g. the robbers didn't carry guns - Were irrelevant to the schema; e.g. wearing hats, what the getaway car was like. Participants were asked about what they could recall immediately and then again several times over 12 weeks. Tuckey and Brewer found that they remembered the facts that fitted the schema, or were the opposite, very well. They only forgot things that were irrelevant to the schema. This suggests that eyewitness memory might benefit from schemas. |
| In terms of Freud's (1900) dream theory, what is repression? | Repression means something being pushed into the unconscious by the conscious mind, though this is not deliberately done, which means someone would not know what 'dark secrets' they were repressing. |
| After learning hypnotism, why did Freud come to reject it? | He rejected hypnotism because the person could not remember the sessions, which he thought was important. |
| Manifest content | What the dream is said to be about by the dreamer - the story the dreamer tells. |
| Latent content | The meaning underlying the dream. If the symbols from the manifest content are translated by an analyst, they can reveal unconscious thoughts. |
| Condensation | When many thoughts and elements from the unconscious are represented in the dream in one symbol. |
| Displacement | When something that seems to be unimportant in the dream in made central, to shift attention from what is really important. |
| Secondary elaboration | How the dreamer builds a story when telling what the dream is about, adding to and changing things, which makes analysis hard. |
| What is the name of Freud's therapy? | Psychoanalysis |
| What kind of patients did Freud treat? | Middle-class patients in the wealthy part of Vienna. |
| What is the aim of psychoanalysis? | To reveal unconscious wishes, desires and emotions to the patient, who, once knowing about the content of the unconscious, will no longer have psychological problems. As the desires are no longer hidden, they can be dealt with. |
| What are the three unique research methods that are involved in psychoanalysis? | - Slips of the tongue - Free association - Dream analysis |
| Psychoanalysis | Freud's therapy, designed to help release unconscious thoughts. |
| Free association | A method used by Freud in psychoanalysis where the patient is encouraged to express a flow of unconsciousness. The process helps to uncover links which can then be interpreted. |
| Slips of the tongue | When someone uses the wrong word for something. Freud analysed these slips to help uncover unconscious thoughts. |
| Dream analysis | A method used by Freud to help uncover unconscious thoughts, by analysing dreams and uncovering symbols. |
| Qualitative data | Data involving stories or attitudes |
| Valid | Refers to findings of studies and means that they are about real-life situations, real-life behaviour or feelings that are real. |
| Generalisable | Refers to findings of studies and whether they can be said to be true of people other than those that were studied. |
| Subjective | Where the researcher is somehow affecting the information that is gathered, perhaps by their interpretation. |
| Objective | Where the researcher's views do not affect the information that is gathered. |
| What makes up the central nervous system (CNS)? | The brain and the spinal column. |
| What are the two types of neuron? | Sensory neurons - receive messages from the senses (e.g. touch, light and sound) Motor neurons - about muscle movement |
| What does the central nervous system (CNS) do? | Processes information from the senses and sends responses for the relevant parts of the body to act upon. |
| What are the four important features of a neuron? | - Cell body - Axon - Terminal buttons - Dendrites |
| Label the four important features (cell body, terminal buttons, axon & dendrites) on this neuron. | A - Terminal buttons B - Axon C - Dendrites D - Cell body |
| How are brain messages sent using neurons? | Messages in the brain are sent using electrical impulses and chemicals that are called neurotransmitters. Step 1 - Electrical impulse triggered from cell of one neuron then travels down the axon. (Impulse= action potential) Step 2 - When the impulse gets to the end of the axon it releases a chemical - the neurotransmitter - found in the terminal buttons at end of axon. Step 3 - Neurotransmitter has to cross synaptic gap to get to the dendrites of the next neuron to continue the message. Step 4 - The neurotransmitter, released by the impulse, goes to the gap - where it could be taken up by the dendrites or could be lost. Step 5 - If the receptors at the dendrites of the next neuron are 'suitable' to receive the neurotransmitter that is in the gap, then the chemical gets picked up. Step 6 - The neurotransmitter sets off an electrical signal and then drops it back into the synaptic gap where it can be taken back to be used again. Step 7 - The change in chemical balance (from the receptors) triggers an electrical impulse from the cell body which then travels down to end of axon.(Bk to1 |
| Neuron | A cell in the body, including in the brain, that sends information using both electrical and chemical processes. |
| Axon | The 'cable' that leads from a cell body of a neuron down to the terminal buttons that hold the neurotransmitter. |
| Impulse | The electrical signal that travels from the cell body of a neuron to the terminal buttons, where it releases a neurotransmitter. |
| Neurotransmitter | A chemical at the terminal button of a neuron, which is released by the impulse and then goes into the synaptic gap. |
| Synaptic gap | The gap between the dendrites of one neuron and the next. |
| Synaptic transmission | What happens when a neurotransmitter released by an impulse of one neuron goes across the synaptic gap and is taken up at the dendrites of another neuron. |
| Who is responsible for the activation-synthesis theory of dreaming and what does the theory claim about dreaming? | Hobson and McCarley (1977) It says that dreams are random messages in the brain being interpreted to make a story. Messages are activated randomly, and then synthesised (put together) into a story. They said that there is a dream state generator in the brain and this part of the brain that gives the dream state is switched on during REM sleep. |
| What is used to measure brain activity during REM sleep? | An EEG (electroencephalograph) |
| What happens during REM sleep? | Sensory blockade - any incoming information from the senses (sight, sound, touch, taste and smell) is blocked. Movement inhibition - physical movements are blocked and the body is paralysed. Random activation - the neurons in the brain are activated because there are random impulses that 'give' information as if it were from the senses. |
| Activation-synthesis model | A model of dreaming proposed by Hobson and McCarley where the brain is active but no sensory information is coming into it. The brain puts the information it has together to make sense of it and this is the dream. |
| Random activation | During REM sleep, when neurons are active randomly not deliberately. |
| Sensory blockade | During REM sleep, when no information enters through the senses (sight, sound, touch, taste and smell). |
| Movement inhibition | The state, during REM sleep, when the body is paralysed and there is no movement. |
| REM sleep | A stage of sleep that occurs about five times each night, where there is rapid eye movement (REM) which indicates that dreaming is taking place. |
| Synthesis | The brain tries to make sense of the random activation of neurons - and this 'sense' is the dream. |
| Aim | A statement of what the study is being carried out to find. |
| Case study | A research method studying an individual or a small group and gathering in-depth and detailed information using different means. |
| Qualitative data | Data involving stories or attitudes |
| Quantitative data | Data that involves numbers and statistics, such as percentages. |
| Generalisability | Refers to findings of studies and how far they can be said to be true of people other than those that were studied. |
| Reliability | Refers to whether findings from a study would be found again if the study was repeated. A study is reliable if the findings are replicated. |
| Subjectivity | Refers to research methods, where the researcher is somehow affecting the results, perhaps by their interpretation. |
| Objectivity | Refers to research methods, where there is no bias, for example the researcher's own views have not affected the findings. |
| Privacy | An ethical guideline for which studies that involve people as participants, which ensures that their names must not be recorded and they must not be identifiable. |
| Confidentiality | An ethical guideline for studies that involve people as participants, which ensures that information gained must not be shared with others without permission. There are some occasions when confidentiality must be broken, however, if there are issues of safety for someone else. |
| Phallic | Term used to refer to anything that is related or said to represent the male penis, or the term can refer to the penis. |
| Oedipus complex | The idea that a boy from about the age of four years old will have unconscious feelings for his mother and want his father out of the way, though then fears his father and feels guilty too. |
| False memory | Any memory that is not true and can be given by someone else 'remembering' an event and telling another person who then 'remembers' it as true. Freud's definition refers more to false recovered memory, where a childhood memory (e.g of abuse) is suggested by the analyst and accepted, then later found not to be true. |
| What are the four categories of sleep disorders? | - Insomnia - Hypersomnia - Circadian rhythm disorders - Parasomnias |
| Insomnia | The most common sleep disorder. It means someone cannot go to sleep or cannot stay asleep. |
| Hypersomnia | This means people feel very sleepy at all times of the day. |
| Circadian rhythm disorders | Causes problems with the body clock. |
| Parasomnias | These are disorders that occur when someone is asleep, such as nightmares, sleep-walking and sleep terrors. |
| What are treatments of psychological sleep disorders? | - Medication - Cognitive behavioural therapy (CBT) - Acupuncture - Hypnotherapy |
| What are primary sleep disorders? | Primary sleep disorders are not related to any other problems, but are problems in themselves. E.g. problems going to sleep, problems staying asleep or problems with waking up. |
| What are secondary sleep disorders? | Secondary sleep disorders stem from another problem, such as pain (keeping someone awake), jet lag or stress (affecting the person's sleeping patterns). |
| Narcolepsy | This is a sleep disorder which means people can suddenly have attacks of sleep in the day. It is a brain disorder. |
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