Chapter 1: An Introduction to Cognitive Psychology Flashcards
magnetoencephalography (MEG) technique
Technique that provides spatial location of the brain tissue that got activated along with related electrical signals
How ERP ( Event-related potential) technique is works
Electrodes are placed on scalp to measure the activity of various neurons
Why ERP is more preferred than FMRI and PET scans
It can measure brain activity quickly
event-related potential (ERP) technique
records the very brief fluctuations in the brain’s electrical activity, in response to a stimulus such as an auditory tone or a visual word
Functional Magnetic Resonance Imaging
based on the magnetic resonance imaging (MRI),A scanning device takes a “photo” of these oxygen atoms while the participant performs a cognitive task.
positron emission tomography (PET) scan
low dose of a radioactive chemical is injected just before this person works on a cognitive task. PET scans may be used to evaluate organs and/or tissues for the presence of disease or other conditions. PET may also be used to evaluate the function of organs, such as the heart or brain. The most common use of PET is in the detection of cancer and the evaluation of cancer treatment.
Brain Lesions
refers to the destruction of an area in the brain, most often by strokes, tumors, blows to the head, and accidents
social cognitive neuroscience
psychologists now use neuroscience techniques to explore the kind of cognitive processes that we use in our interactions with other people; this new discipline is called
Cognitive Neuroscience
combines the research techniques of cognitive psychology with various methods for assessing the structure and function of the brain (Marshall, 2009).
Two other names that are often used interchangeably with connectionism are:
parallel distributed processing (PDP) approach and the neural-network approach.
How connectionist approach different than information processing
Information processing approach believes on flow chart of neural activity while connectionist approach believes on simultaneous working of brain activity
connectionist approach
A belief that the brain works simultaneously on any stimulus. It belives that neurons are connected which act like many processing units.
What are 2 beliefs of information-processing approach
(a) our mental processes are similar to the operations of a computer, and (b) information progresses through our cognitive system in a series of stages, one step at a time
How Thagard (2005) suggests that a computer model resembles a recipe in cooking?
recipe has two parts: (1) the ingredients, which are somewhat like the structures; and (2) the cooking instructions that act like processes
as per computer metaphore computers have a processing mechanism with a limited capacity. What limitations do human mind has
limited attention and short-term memory capacities
computer metaphor,
cognitive processes work like a computer.
computer simulation or computer modeling
perform a specific cognitive task in the same way that humans actually perform this task. A computer simulation must produce the same number of errors—as well as correct responses—that a human produces
Pure artificial intelligence
an approach that designs a program to accomplish a cognitive task as efficiently as possible, even if the computer’s processes are completely different from the processes used by humans. Basically it tries to achieve best performance in AI
Things that Researchers in artificial intelligence tried to do
humans recognize a face, create a mental image, and write a poem, as well as hundreds of additional cognitive accomplishments
Artificial intelligence (AI)
branch of computer science. It seeks to explore human cognitive processes by creating computer models that show “intelligent behavior” and also accomplish the same tasks that humans do
Cognitive science
field that tries to answer questions about the mind. Cognitive science includes cognitive psychology, neuroscience, artificial intelligence, philosophy, linguistics, anthropology, sociology, and economics.
One common complaint about cognitive Psychology
Ecological Validity. I.e conditions in which the research is conducted are similar to the natural setting where the results will be applied.
What are some internal processes that cognitive psychologists focus on
memory, attention, and language
Why Ulric Neisser is called the father of Cognitive Psychology
Neisser was the first person to use the term “Cognitive Psychology,”