Psych 3 Flashcards
Child Cognition- Early Visual Development
At birth we aren’t ready to view the world, and it takes experience to understand the world, with vision. When we are born, we don’t have that many photo receptors and can’t see too much color.
Early Visual Development
2-3 months- A child can switch attention. But before this time, the infant stares at whatever is most salient. 6-9 months, can converge or diverge eyes, learns about depth through binocular vision and Gestalt grouping. 9-12 months old, has experienced depth, gravity, and shadows, so after 9 months we have more experience. Ex. Baby visual cliff experiment.
Early development
As a result of fetal develop. in the brain, neurons have way too many connections (synapses), and everything is connected with everything (neurotically speaking). So babies don’t know what language their parents speak, so all these connections mean they can learn any language.
Preferential Looking- How we test babies
Infants prefer looking at novel and interesting stimuli. The sucking rate means that babies suck on their pacifier if they are interested in something. Gaze duration means they will look at an item that’s new or exciting, and head turning means the infant will turn their head if shown certain stimuli.
Early Brain Development- “Use it or lose it system”
Neural pruning is the less we use something, the connections will die off. And the specialization lasts until mid-20s, when we are finished pruning.
Jean Piaget
Swiss Psychologist who was interested in the nature of knowledge and intelligence. Interested in children and how they are little scientists as they perform experiments, observations and learn about the world.
Jean Piaget’s Stages of Cognitive Development
Sensorimotor Stage- 0 to 2 years
Preoperational stage- 2 to 7 years
Concrete Operational stage- 7 to 11 years
Formal Operational Stage- 12 years and up
Sensorimotor Stage (Stage 1) 0 to 2 years
Explores the world through their movements and sensations. Children learn about the world through basic sensations, and actions, such as sucking, grasping, looking, and listening. Learn/realize that their actions have consequences. They are separate beings from the people and objects around them. About age 1, babies learn that things continue to exist even though they cannot be seen.
Object Permanence (gained around age 1)
Object permanence means knowing that an object still exists, even if it is hidden. It requires the ability to form a mental representation of the object. For example, if you place a toy under a blanket, the child who has achieved object permanence knows it is there and can actively seek it.
Pre-operational Stage (Stage 2) 2-7 years
Children in this stage do not understand concrete logic and cannot mentally manipulate information, so they don’t have conservation. Begin to think symbolically and learn to use words and pictures to represent objects. Ex. a box is a rocket ship, they play pretend. And they are egocentric and struggle to see things from other people’s perspectives.
Early Visual Development
We are not born with the ability to see in 3-D (binocular vision), and have to learn about things like Gestalt grouping principles and monocular cues of depth by observing the world around us.
Conservation
Refers to the idea that certain physical characteristics of objects remain the same, even when their outward appearance changes.
Concrete Operational Stage (Stage 3) 7-11 years
Children now understand Conservation, they now begin to think logically about concrete events (but are unable to think hypothetically). Begin to understand hard facts and lose egocentrism. And realize that other people can have different viewpoints and thoughts different from their own. Thinking becomes logical and concrete and organized, their logic is defined by rules and the observations they have learned.
Formal Operational Stage (Stage 4) 12-17 years
The ability to use hypothetical and deductive reasoning and abstract concepts, fully achieved around 15 years old. Teens begin to think more about moral, philosophical, ethical, social and political issues that require theoretical and abstract reasoning. Ex. eye placement example, stage 3 kids say eye should be in the forehead, while stage 4 people will have more creative answers, like in the hands.
Some Extreme Cases of the manipulation of the neural pruning system in children.
GenieWiley (negative outcome) and Bella Devyatkina (positive outcome)
Genie Wiley
Her language acquisition, over the years Genie learned words one at a time, after a few years she could produce 2-word sentences. She was unable to use grammar and surpassed the critical period and was unable to use language.
Bella Devyatkina
Bella Devyatkina from Moscow. Her mother was a language tutor and socialized Bella by exposing her to dif. languages through a combination of daily lessons and socializing with people who spoke the foreign languages Bella wanted to learn. So by age 4, able to speak 7 languages, so exposing children to dif. languages is beneficial during the critical period.
Cognitive Development and Illusions
As we go through life we acquire experiences with different objects, and make assumptions about our world based on our past experience. Children are not as experienced with the world as adults, so some
illusions operate differently on children versus adults.
Critical Period for Language Acquisition
Thought to be active only from roughly birth to
age 12, our brains are primed and particularly
efficient during this time at acquiring and
processing language. For Genie Wiley, she was not properly socialized nor exposed to language during that time period, so she never was able to acquire
language later in life. But Bella Devyatkina has been exposed to many languages within the critical period, so she will likely still be fluent in them decades from
now.
Early Language Acquisition
To facilitate the acquisition of new words in very young children, adults use “baby talk” (intonation & pitch changes). This helps the infant with sentence segmentation, pronunciation (by exaggerating changes in prosody), as well as keeping their attention better. This is more effective than adult-directed speech.
Adolescents Online
Research has confirmed that children using
technology near bedtime likewise upset their Circadian Rhythms and leads to health issues. So, the hippocampus which is in charge of processing and retrieving memory is affected because the sleep cycle is critical for the formation of processing memories. Memories aren’t encoded and consolidated well because of disrupted sleep.
The Streisand Effect
The Streisand effect is a social phenomenon that occurs when an attempt to hide, remove, or censor information has the unintended consequence of further publicizing that information. This effect is an example of psychological reactance, because Barbara Streisand was trying to hide her house.
Aging and Cognitive Decline
The trend for nearly all of cognition is a peak very early in either childhood, adolescence, or early adulthood, and then a steady decline until death.
For all sensory modalities, there is a Presby-word to describe the decline of that modality with age
Ex. Presbycusis- Loss of hearing
Presbygeusia: Loss of taste
Presbyopia: Loss of vision
Presbyosmia: Loss of smell
Presbystasis: Loss of balance