S2 W6 Cognitive development in adolescence Flashcards
Basic Level Cognitive functions
Attention,
Perception
Memory.
Limbic system.
High level cognitive functions
Logical reasoning
Problem solving
Prefrontal cognition
Cognitive functions: Content: Perception
is a cognitive ability that is present from early on in life.
However, it changes with age. Notably, with development we see a change in the flexibility perception. Flexibility of visual perception is tested easily with ambiguous figures = figure that can be perceived in two (or more ways.)
Cognitive function: content: selective attention
is the ability to allocate attentional resources and focus on a specific object.
The ability improves with age, especially in adolescence. Crucial for problem solving where you may need to pay attention to relevant information and ignore irrelevant information.
Cognitive Function: Content: Processing speed
defined as the time it takes the brain to receive or output information, or the speed in which mental calculation can be carried out.
Speed of processing develops rapidly during childhood and continues to develop during adolescence. Older adolescents show faster speed of processing compared to younger ones. This development is at least partially driven by maturation of white matter in the brain (maelynation).
Cognitive Function: Structure: Memory
Short-term memory (STM) = Memory that is only required for a short duration of time.
Structure: Memory: Span task
series of items presented at a rate of 1/sec (letter/digits or words). Task is to repeat them in the same order
Structure: Memory: Spatial span task
during which blocks are presented in a particular arrangement and the experimenter taps the blocks in a specific order. Participants are required to repeat the sequence.
Cognitive function: Process: Face processing
Face recognition: early adulthood our memory for faces is amazing. 90% accuracy in recognizing faces of high school classmates from yearbook photos – as long as 35 years after graduation
Encoding switch hypothesis: carey and diamond 1977
Information about faces in represented in memory differently at different ages. This theory suggests that:
young children rely on information about individual features;
adolescents and adults use information about the configuration of the features.
Face Memory Task
memorize target faces + find the target in a panel containing two non-target faces
Ambiguous figure
figure that can be perceived in two or more different ways.
Younger children usually reported only seeing one element in the illustration rather than two.
Older children could readily perceive the figures in more tha none way, this suggest increased flexibility of thought in adolescence allows alternation between different perspective to be easily accomplished.
Selective attention
ability to allocate attentional resources and to focus on specific topics. Young children appear to divide their attention between the central and incidental objects but older preadolescents selectively maintain their attention to the central objects as required by task demands.
Featural processing
Tendency to process the separate features of the face, as opposed to perceiving the relationship between the parts.
Configural processing
processing that pays particular attention to the overall spatial layout of individual features