Information technology and aging

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A factor to be considered with old age is cognitive aging. Information technologies need to be centered on factors that define cognition. This article highlights some of the important conceptual models and theories that govern the design of such systems. The main focus is to look at the different information processing technologies that are presently used for enabling better functional performance.

Contents

As baby boomers grow older, there exists a growing demand for a good support system that can ease their burdens. Technology is ubiquitous in most social contexts in industrialized countries, and has become an integral component of most activities in everyday life. The advent of technology has shown promising results in various fields such as the delivery of care and in-vehicle driving technology by focusing on the needs of older adults and placing them at the center of this transformation. Such systems would improve and empower not just the elderly but also their families while reducing some of the burden on them and increasing independence. However, there continues to exist a digital divide amongst the elderly population that use technology less, causing them to become disenfranchised and disadvantaged. [1]

Elderly and technology

Although older adults are increasingly using technology, they typically have more difficulty than younger adults in learning to use and operate them. [2] The successful adoption and usage of new technology is becoming increasingly important for functional independence in the lives of adults both young and old. Older adults are now more than ever faced with a wide range of new technologies on a daily basis. Thus an important task in the field of gerontology is to develop training tools that can aid and improve accessibility for older adults. What makes this complex is the need for age-specific tools that match the cognitive and perceptual capabilities of this age group.

Cognition

Age-related differences in cognitive functioning have been known to stem from the reduction of cognitive resources available, thus impairing older adults’ ability to carry out cognitively demanding tasks. [3] Cognitive aging causes changes in mechanisms related to information processing and working memory function. According to cognitive psychologist Fergus I. M. Craik, these mechanisms are responsible for age-related speed of decline in performance of mental processing; online cognitive resources available at any given time to process, store, retrieve, and transform information (working memory); focusing on a target; paying attention; and sensory processing of information. [4] The inherent relationship between cognitive abilities and technology adoption points to the importance of ensuring that system interfaces are well designed and easy to use. The use of information processing theory in cognition [5] looks at the role of the three stages of memory related to retrieving, transferring, and recalling information. Cognitive information processing focuses on different aspects of instruction and how those aspects can either facilitate or hinder learning and memory. It emphasizes using strategies that focus the learner's attention, promotes encoding and retrieval, and provide for meaningful, effective practice across learning environments and curriculum.

Compensatory technologies

Compensatory systems can be used to support cognitive aging and impairment and thereby improve performance. [6] They range from simple home reminder systems to sophisticated robotic support systems. While there are numerous technological interventions at present being developed, there continues to be an increase in the amount of research and work that focuses on providing compensatory support for a number of executive functional impairments for the elderly. Early work on prospective memory aids and assistive devices investigated the application of commonplace technologies which were inexpensive, easy to use, and invoked no social stigma. Due to the inherent limitations of such devices, there was a need to design effective, portable memory aid devices that provide cues and relevant information. Listed below are some of the information technologies that have been developed:[ citation needed ]

DeviceDescription
IQ Voice OrganizerA pocket-sized device that allows verbal messages to be recorded and played back audibly at any time
Data Link WatchA system that consists of a wristwatch and a software program for a PC that stores the user's schedule and important medical information that can send reminders to the user
Cell MinderTracks users’ schedules and sends reminders by calling them on their cell phone
Memory Aiding Prompting Maps (MAPS)Communicates user information with caregivers and clinicians to record users' schedule and automatically contact doctors if problems arise
Task Guidance SystemCan be programmed and customized to guide users' tasks through prompts; for users with severe cognitive impairments

The future of information technology lies in creating context-dependent devices that respond to the user's physical and social environment. For example, if the device was aware of the user's location, it could give reminders relevant to that location. Information about the user's environment might also provide clues to the device on what reminders might be important or unnecessary. Social cues might allow the device to know when a reminder would be inappropriate, such as when the user is talking with another person and might not want to be interrupted. [ citation needed ]

Information processing theory

Information processing theory [6] is an approach used to study cognitive development that evolved out of the American experimental tradition in psychology. Developmental psychologists who adopt the information-processing perspective account for mental development in terms of maturational changes in basic components of a child's mind. The theory is based on the idea that humans process the information they receive, rather than merely responding to stimuli. This perspective equates the mind to a computer, which is responsible for analyzing information from the environment. According to the standard information-processing model for mental development, the mind's machinery includes attention mechanisms for bringing information in, working memory for actively manipulating information, and long-term memory for passively holding information so that it can be used in the future. A primary focus of information processing is memory.

Stage theory

The most widely accepted model is called "stage theory" based on the work by Richard Atkinson and Richard Shiffrin shown in figure 1. The model focuses on how information is stored in the memory in three stages. In this theory, information is thought to be processed in a serial, discontinuous manner as it moves from one stage to another.

Other theories

There are many recent theories concerning information processing that differ from the stage theory model. Research and study continue to modify existing beliefs in cognitive psychology. Despite the fact that there are commonly accepted pieces, the complete picture of how information is processed continues to change.

Levels of processing: One of the first alternatives to the stage theory was developed by Fergus I. M. Craik and Robert S. Lockhart (1972). The levels of processing theory holds that memory is not three-staged, which distinguishes it from the stage theory model.

Dual-coding theory: Another theory is Allan Paivio’s work in dual coding. This theory gives equal significance to both verbal and non-verbal processing and suggests that there are two separate systems for processing these types of information.

Schema theory, parallel distributed processing, and connectionist models: David Rumelhart (1980), working in conjunction with others, developed the schema theory of information processing and memory. He suggested that a schema is a data structure for representing generic concepts stored in memory.

Related Research Articles

Cognitive psychology is the scientific study of mental processes such as attention, language use, memory, perception, problem solving, creativity, and reasoning.

Educational psychology is the branch of psychology concerned with the scientific study of human learning. The study of learning processes, from both cognitive and behavioral perspectives, allows researchers to understand individual differences in intelligence, cognitive development, affect, motivation, self-regulation, and self-concept, as well as their role in learning. The field of educational psychology relies heavily on quantitative methods, including testing and measurement, to enhance educational activities related to instructional design, classroom management, and assessment, which serve to facilitate learning processes in various educational settings across the lifespan.

<span class="mw-page-title-main">Forgetting</span> Loss or modification of information encoded in an individuals memory

Forgetting or disremembering is the apparent loss or modification of information already encoded and stored in an individual's short or long-term memory. It is a spontaneous or gradual process in which old memories are unable to be recalled from memory storage. Problems with remembering, learning and retaining new information are a few of the most common complaints of older adults. Studies show that retention improves with increased rehearsal. This improvement occurs because rehearsal helps to transfer information into long-term memory.

<span class="mw-page-title-main">Cognition</span> Act or process of knowing

Cognition is the "mental action or process of acquiring knowledge and understanding through thought, experience, and the senses". It encompasses all aspects of intellectual functions and processes such as: perception, attention, thought, imagination, intelligence, the formation of knowledge, memory and working memory, judgment and evaluation, reasoning and computation, problem-solving and decision-making, comprehension and production of language. Cognitive processes use existing knowledge and discover new knowledge.

Social cognition is a topic within psychology that focuses on how people process, store, and apply information about other people and social situations. It focuses on the role that cognitive processes play in social interactions.

<span class="mw-page-title-main">Mental model</span> Explanation of someones thought process about how something works in the real world

A mental model in psychology is an internal representation of external reality, hypothesized to play a major role in cognition, reasoning and decision-making. The term was coined by Kenneth Craik in 1943 who suggested that the mind constructs "small-scale models" of reality that it uses to anticipate events.

In psychology and cognitive science, a schema describes a pattern of thought or behavior that organizes categories of information and the relationships among them. It can also be described as a mental structure of preconceived ideas, a framework representing some aspect of the world, or a system of organizing and perceiving new information, such as a mental schema or conceptual model. Schemata influence attention and the absorption of new knowledge: people are more likely to notice things that fit into their schema, while re-interpreting contradictions to the schema as exceptions or distorting them to fit. Schemata have a tendency to remain unchanged, even in the face of contradictory information. Schemata can help in understanding the world and the rapidly changing environment. People can organize new perceptions into schemata quickly as most situations do not require complex thought when using schema, since automatic thought is all that is required.

<span class="mw-page-title-main">Piaget's theory of cognitive development</span> Theory that discusses human intelligence from an epistemological perspective

Piaget's Theory of Cognitive Development, or his "genetic epistemology," is a comprehensive theory about the nature and development of human intelligence. It was originated by the Swiss developmental psychologist Jean Piaget (1896–1980). The theory deals with the nature of knowledge itself and how humans gradually come to acquire, construct, and use it. Piaget's theory is mainly known as a developmental stage theory.

In cognitive psychology, cognitive load refers to the amount of working memory resources used. However, it is essential to distinguish it from the actual construct of Cognitive Load (CL) or Mental Workload (MWL), which is studied widely in many disciplines. According to work conducted in the field of instructional design and pedagogy, broadly, there are three types of cognitive load: intrinsic cognitive load is the effort associated with a specific topic; extraneous cognitive load refers to the way information or tasks are presented to a learner; and germane cognitive load refers to the work put into creating a permanent store of knowledge. However, over the years, the additivity of these types of cognitive load has been investigated and questioned. Now it is believed that they circularly influence each other.

Prospective memory is a form of memory that involves remembering to perform a planned action or recall a planned intention at some future point in time. Prospective memory tasks are common in daily life and range from the relatively simple to extreme life-or-death situations. Examples of simple tasks include remembering to put the toothpaste cap back on, remembering to reply to an email, or remembering to return a rented movie. Examples of highly important situations include a patient remembering to take medication or a pilot remembering to perform specific safety procedures during a flight.

Information processing theory is the approach to the study of cognitive development evolved out of the American experimental tradition in psychology. Developmental psychologists who adopt the information processing perspective account for mental development in terms of maturational changes in basic components of a child's mind. The theory is based on the idea that humans process the information they receive, rather than merely responding to stimuli. This perspective uses an analogy to consider how the mind works like a computer. In this way, the mind functions like a biological computer responsible for analyzing information from the environment. According to the standard information-processing model for mental development, the mind's machinery includes attention mechanisms for bringing information in, working memory for actively manipulating information, and long-term memory for passively holding information so that it can be used in the future. This theory addresses how as children grow, their brains likewise mature, leading to advances in their ability to process and respond to the information they received through their senses. The theory emphasizes a continuous pattern of development, in contrast with cognitive-developmental theorists such as Jean Piaget's theory of cognitive development that thought development occurs in stages at a time.

Self-referential encoding is a method of organizing information in one's memory in which one interprets incoming information in relation to oneself, using one's self-concept as a background. Examples include being able to attribute personality traits to oneself or to identify recollected episodes as being personal memories of the past. The implications of self-referential processing are evident in many psychological phenomena. For example, the "cocktail party effect" notes that people attend to the sound of their names even during other conversation or more prominent, distracting noise. Also, people tend to evaluate things related to themselves more positively. For example, people tend to prefer their own initials over other letters. The self-reference effect (SRE) has received the most attention through investigations into memory. The concepts of self-referential encoding and the SRE rely on the notion that relating information to the self during the process of encoding it in memory facilitates recall, hence the effect of self-reference on memory. In essence, researchers have investigated the potential mnemonic properties of self-reference.

<span class="mw-page-title-main">Memory and aging</span> Aspect of senescence

Age-related memory loss, sometimes described as "normal aging", is qualitatively different from memory loss associated with types of dementia such as Alzheimer's disease, and is believed to have a different brain mechanism.

A cognitive intervention is a form of psychological intervention, a technique and therapy practised in counselling. It describes a myriad of approaches to therapy that focus on addressing psychological distress at a cognitive level. It is also associated with cognitive therapy, which focuses on the thought process and the manner by which emotions have bearing on the cognitive processes and structures. The cognitive intervention forces behavioral change. Counselors adopt different technique level to suit the characteristic of the client. For instance, when counseling adolescents, a more advanced strategy is adopted than the intervention used in children. Before the intervention, an initial cognitive assessment is also conducted to cover the concerns of the cognitive approach, which cover the whole range of human expression - thought, feeling, behavior, and environmental triggers.

Memory has the ability to encode, store and recall information. Memories give an organism the capability to learn and adapt from previous experiences as well as build relationships. Encoding allows a perceived item of use or interest to be converted into a construct that can be stored within the brain and recalled later from long-term memory. Working memory stores information for immediate use or manipulation, which is aided through hooking onto previously archived items already present in the long-term memory of an individual.

Fergus Ian Muirden Craik FRS is a cognitive psychologist known for his research on levels of processing in memory. This work was done in collaboration with Robert Lockhart at the University of Toronto in 1972 and continued with another collaborative effort with Endel Tulving in 1975. Craik has received numerous awards and is considered a leader in the area of memory, attention and cognitive aging. Moreover, his work over the years can be seen in developmental psychology, aging and memory, and the neuropsychology of memory.

<span class="mw-page-title-main">Childhood memory</span> Early life experiences often memorable for life

Childhood memory refers to memories formed during childhood. Among its other roles, memory functions to guide present behaviour and to predict future outcomes. Memory in childhood is qualitatively and quantitatively different from the memories formed and retrieved in late adolescence and the adult years. Childhood memory research is relatively recent in relation to the study of other types of cognitive processes underpinning behaviour. Understanding the mechanisms by which memories in childhood are encoded and later retrieved has important implications in many areas. Research into childhood memory includes topics such as childhood memory formation and retrieval mechanisms in relation to those in adults, controversies surrounding infantile amnesia and the fact that adults have relatively poor memories of early childhood, the ways in which school environment and family environment influence memory, and the ways in which memory can be improved in childhood to improve overall cognition, performance in school, and well-being, both in childhood and in adulthood.

Executive functions are a cognitive apparatus that controls and manages cognitive processes. Norman and Shallice (1980) proposed a model on executive functioning of attentional control that specifies how thought and action schemata become activated or suppressed for routine and non-routine circumstances. Schemas, or scripts, specify an individual's series of actions or thoughts under the influence of environmental conditions. Every stimulus condition turns on the activation of a response or schema. The initiation of appropriate schema under routine, well-learned situations is monitored by contention scheduling which laterally inhibits competing schemas for the control of cognitive apparatus. Under unique, non-routine procedures controls schema activation. The SAS is an executive monitoring system that oversees and controls contention scheduling by influencing schema activation probabilities and allowing for general strategies to be applied to novel problems or situations during automatic attentional processes.

Cognitive inhibition refers to the mind's ability to tune out stimuli that are irrelevant to the task/process at hand or to the mind's current state. Additionally, it can be done either in whole or in part, intentionally or otherwise. Cognitive inhibition in particular can be observed in many instances throughout specific areas of cognitive science.

Destination memory refers to the process of remembering to whom one has told information. When you are speaking to someone and forget whether or not you have previously told the person the information, you are experiencing an error in destination memory. The medial temporal lobe is critical for successful destination memory because it is this region of the brain that controls our episodic memory, which includes destination memory. The neurological processes responsible for destination memory are impaired by normal aging and are significantly affected by Alzheimer's disease. In addition to being an interesting neurological process, destination memory error can cause awkward social interactions and social embarrassment.

References

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  4. "Introduction to Sensory Processing Concepts". University of Kansas Medical Center. Archived from the original on 2017-09-14. Retrieved 2023-01-01.
  5. Reiser, Robert A.; Dempsey, John V., eds. (2007). Trends and Issues in Instructional Design and Technology. Upper Saddle River, New Jersey: Pearson Education. ISBN   978-0-13-170805-1.[ page needed ]
  6. 1 2 Pollack, Martha E. (2005). "Intelligent Technology for an Aging Population: The Use of AI to Assist Elders with Cognitive Impairment". AI Magazine. 26 (2): 9–24. doi:10.1609/aimag.v26i2.1810.

Further reading