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Non-Rationalised Psychology NCERT Notes, Solutions and Extra Q & A (Class 11th & 12th)
11th 12th

Class 11th Chapters
1. What Is Psychology? 2. Methods Of Enquiry In Psychology 3. The Bases Of Human Behaviour
4. Human Development 5. Sensory, Attentional And Perceptual Processes 6. Learning
7. Human Memory 8. Thinking 9. Motivation And Emotion



Chapter 8 Thinking



Introduction

Every human infant is born with a limited set of innate responses. As they grow, their capacity for making diverse responses expands significantly through learning.

Activities like building with blocks, as observed in young children, involve purposeful manipulation and often self-directed speech, indicating ongoing mental processes.

This chapter delves into thinking, a central aspect of human cognition that enables problem-solving, drawing conclusions, making judgments, and choosing among options.

We will explore the nature of thinking, its building blocks, the processes involved in problem-solving and decision-making, the characteristics and development of creative thinking, and the intricate relationship between thought and language.

Understanding thinking is fundamental to understanding how humans interact with and make sense of the world around them.



Nature Of Thinking

Thinking is a fundamental cognitive process unique to humans. It serves as the basis for all other mental activities.

It involves actively working with and analysing information received from the environment or retrieved from memory.

When you look at a painting, for instance, you don't just passively observe colours and lines; you interpret its meaning, connecting it to your existing knowledge and experiences, thus creating new understanding.

Thinking is a higher-level mental process that involves manipulating and analysing information through various cognitive operations like abstracting, reasoning, imagining, problem-solving, judging, and decision-making.

Most thinking is organised and directed towards achieving a specific goal, from simple daily tasks like cooking to more complex ones like solving mathematical problems.

Achieving goals involves mental planning, recalling past strategies for familiar tasks, or inferring new approaches for novel ones.

Thinking is an internal, unobservable mental process. We can only infer what someone is thinking by observing their outward behaviour or actions. For example, a chess player's thinking process is inferred from the move they eventually make after deep contemplation.


Building Blocks Of Thought

Thinking relies heavily on our existing knowledge. This knowledge is typically represented in the mind in the form of mental images or concepts.

When navigating to a familiar place, you might rely on visual memories of streets and landmarks (mental images). When choosing a book, your decision is based on abstract knowledge about authors, genres, and themes (concepts/words).

Let's examine these building blocks:

Mental Image: A mental representation that resembles a sensory experience. It allows us to "see" or "hear" things in our mind even when the actual stimulus is not present. Examples include visualising a scene described or forming a mental map of a route.

A girl with her eyes closed, seemingly forming a mental image

Mental images can be used to think about objects, places, events, and actions, providing a concrete form of mental representation.

Concepts: A mental representation of a category. Concepts group objects, ideas, or events that share common properties or features (e.g., 'lion' is a concept within the category 'animal' that distinguishes it from 'bird').

We form concepts by extracting common characteristics from instances and grouping them into categories.

Concepts are essential for organising our knowledge, making it quicker and more efficient to access and use. They function like mental filing systems, allowing us to categorise new information based on similarity to existing concepts.

Concepts are typically organised hierarchically:

Most concepts we use in daily thinking, especially natural concepts (like 'chair', 'cup'), are not rigidly defined. They often have "fuzzy boundaries" and overlap.

To deal with this ambiguity, we often use prototypes – the best, most typical examples of a category. We decide if something belongs to a category by comparing it to our prototype for that category.

Eighteen different illustrations of cups varying in shape, size, and presence of handle

As shown in the image, our idea of a "typical" cup influences what we label as a cup, bowl, or vase, highlighting the subjective nature of concept boundaries based on prototypes.


Culture And Thinking (Box 8.1)

Culture, including our beliefs, values, and social practices, significantly shapes our thinking patterns.

Research comparing American and East Asian students' descriptions of underwater scenes suggests cultural differences in perceptual and cognitive focus.

These studies indicate that cultural experiences can lead to different cognitive styles in perceiving and thinking about the world.


The Processes Of Thinking

Thinking is not a single, monolithic process but involves various specific cognitive operations. While thinking relies on building blocks like images and concepts, the mental work happens through processes like problem-solving, reasoning, and decision-making. The following sections delve into these specific processes.



Problem Solving

Problem solving is a type of thinking that is directed towards achieving a specific goal when the path to the goal is not immediately obvious.

Problems are not necessarily major obstacles; they can be any situation where there's an initial state (the problem) and a desired end state (the goal), and you need to find a way to get from one to the other (e.g., fixing a bicycle, planning a trip, preparing a snack).

Problem-solving involves a sequence of mental operations or steps to bridge the gap between the initial state and the goal state (Table 8.1 provides a general model).

Mental Operation Description in a sample problem (Organising a play)
1. Identify the problem Recognising there's a task to be done (organising a play) and a deadline.
2. Represent the problem Understanding what's involved (choosing a theme, casting, funding, etc.).
3. Plan the solution / Set sub-goals Breaking down the main goal into smaller, manageable steps (researching themes, finding actors, arranging finances).
4. Evaluate potential solutions/options Considering different themes/scripts based on criteria like cost, duration, suitability.
5. Select one solution and execute it Choosing a specific play and starting rehearsals/preparations.
6. Evaluate the outcome Assessing the success of the play after the performance.
7. Rethink and redefine problems and solutions Reflecting on what worked and what didn't to improve future efforts.

Trying out problem-solving tasks (like anagrams, puzzles, or the water jar problem) allows us to observe and analyse the strategies people use.


Obstacles To Solving Problems

Several factors can hinder effective problem-solving:

Mental Set: The tendency to approach new problems using strategies or mental operations that worked successfully in the past on similar problems. While helpful in many situations, a strong mental set can lead to rigidity, preventing the individual from considering alternative or novel approaches when the old ones are not suitable for the new problem. This can block the discovery of more effective solutions.

Similar to mental set is functional fixedness, a specific type of cognitive bias where a person is unable to see that an object can be used in a way other than its typical function (e.g., failing to see that a book could be used as a hammer).


Lack Of Motivation

Effective problem-solving requires effort and persistence. Even with the necessary skills, a lack of motivation can lead individuals to give up easily when faced with challenges or initial failures, preventing them from exploring alternative solutions.



Reasoning

Reasoning is the mental process of drawing conclusions or making inferences based on available information or evidence. It is a form of problem-solving where the goal is to determine what conclusions logically follow from given premises.


Deductive And Inductive Reasoning

Two main types of reasoning:

Analogy is a related form of reasoning involving comparing the relationship between two things to the relationship between two other things (A:B :: C:D), which can be useful in problem-solving by highlighting key attributes or relationships.



Decision-Making

Decision-making is the process of choosing among several available alternatives or options. It often follows judgment, where conclusions are drawn or evaluations are made based on knowledge and evidence.

Judgment involves assessing situations, objects, or people based on personal preferences, past knowledge, and available information. Judgments can be automatic or require conscious effort and can be revised based on new information.

Decision-making requires evaluating the potential costs and benefits associated with each available alternative before making a choice. Unlike some types of problem-solving where the solution needs to be discovered, in decision-making, the options are usually known, and the task is to select the best one.

Real-life decisions are often made quickly, based on personal priorities and without exhaustive evaluation of every possibility.



Nature And Process Of Creative Thinking

Creative thinking involves generating ideas or solutions that are novel, original, and appropriate for a given context. It's not limited to eminent individuals but is a potential inherent in everyone, applicable at various levels in almost any field of human activity.

Everyday creativity is reflected in how people approach daily tasks and problems, distinct from the exceptional creativity seen in groundbreaking scientific or artistic achievements.


Nature Of Creative Thinking

Key characteristics of creative thinking:

J.P. Guilford distinguished two types of thinking:

Divergent thinking abilities crucial for creativity include:

Both convergent and divergent thinking are important: divergent thinking generates possibilities, and convergent thinking helps select the most suitable one.


Lateral Thinking (Box 8.2)

Edward de Bono uses the term lateral thinking as similar to divergent thinking, contrasting it with vertical (logical, sequential) thinking. Vertical thinking digs deeper in the same direction, while lateral thinking explores alternative directions and perspectives, enabling mental leaps and new interpretations of problems.

De Bono's "Six Thinking Hats" is a technique to encourage different modes of thinking (information gathering, feelings, caution, benefits, creativity, process) to approach issues from multiple perspectives.


Process Of Creative Thinking

Creative thinking is not just a sudden "flash" but a process involving stages:

Flowchart illustrating the stages of the creative process: Preparation, Incubation, Illumination, Verification

Developing Creative Thinking

Creative potential exists in everyone and can be enhanced through practice and training. While genetics play a role, environmental factors significantly influence creativity development.

Identifying and overcoming barriers is the first step in fostering creativity.


Barriers To Creative Thinking

Obstacles that impede creative expression:


Strategies For Creative Thinking

Cultivating certain attitudes, skills, and habits can enhance creative thinking:

Example 1. Try out the ‘water in three bottles’ activity with your friend.

There are three bottles, A, B, and C. Bottle A can hold 21 ml., B can hold 127 ml., and C can hold 3 ml. The task for your friend is to get 100 ml of water with the help of these three bottles. There are six more problems like this. These seven problems are given below.

Problems The required The capacity of the
quantity bottles in ml.

A B C

1. 100 21 127 3
2. 99 14 163 25
3. 5 18 43 10
4. 21 9 42 6
5. 31 20 59 4
6. 20 23 49 3
7. 25 28 76 3

Answer:

The typical solution for problems 1-5 is obtained by the formula $B - A - 2C$. For Problem 1 (100ml required, bottles A=21ml, B=127ml, C=3ml), the steps are:

  1. Fill bottle B completely (127ml).
  2. Pour from B to fill A (127 - 21 = 106ml remaining in B).
  3. Pour from B to fill C (106 - 3 = 103ml remaining in B).
  4. Empty C.
  5. Pour from B to fill C again (103 - 3 = 100ml remaining in B).

Problems 6 and 7 are designed to demonstrate mental set. Problem 6 (20ml required, A=23ml, B=49ml, C=3ml) can also be solved by the formula $B - A - 2C$. However, it can also be solved by a simpler method: $A - C$ (23 - 3 = 20ml).

Problem 7 (25ml required, A=28ml, B=76ml, C=3ml) can ONLY be solved by a simpler method: $A - C$ (28 - 3 = 25ml). The formula $B - A - 2C$ does not work ($76 - 28 - (2 \times 3) = 76 - 28 - 6 = 42$).

If a person successfully solves problems 1-5 using the $B - A - 2C$ method, they may form a strong mental set and continue trying to apply this formula to problems 6 and 7, even when simpler or different solutions are available or required. Failing to see the simpler $A - C$ solution for Problem 6, or being unable to solve Problem 7 because the established formula doesn't work, demonstrates how a mental set can hinder finding new solutions.



Thought And Language

The relationship between thinking and language is a topic of debate. Three main viewpoints exist:


Language As Determinant Of Thought

This view, known as the linguistic relativity hypothesis, strongly associated with Benjamin Lee Whorf, suggests that the language we speak influences or even determines how we think and perceive the world. The strong version, linguistic determinism, claims that thought possibilities are limited by language categories.

Examples like the differing number of kinship terms in Hindi vs. English, or colour terms in different languages, are cited. The idea is that having more specific language terms might facilitate thinking about those distinctions.

However, empirical evidence suggests that while language can make certain thoughts easier or more accessible, it doesn't strictly *determine* what we can think. People can possess similar cognitive abilities regardless of language, although expression might vary.


Thought As Determinant Of Language

Swiss psychologist Jean Piaget argued that thinking is primary and precedes language. He believed children first develop cognitive structures and an internal representation of the world through mental actions and understanding, and language is then used to express these pre-existing thoughts.

Piaget saw language as a vehicle for thought, not its origin. He argued that children can think (e.g., through imitation) before they acquire language. Understanding language requires possessing the underlying concepts developed through thinking.


Different Origins Of Language And Thought

Russian psychologist Lev Vygotsky proposed that thought and language initially develop independently in children until around age two, when they merge and become interdependent.

Vygotsky believed that thought can exist without language (e.g., visual or movement-based thinking), and language can exist without complex thought (e.g., expressing simple feelings or social pleasantries). When they overlap, they combine to produce verbal thought and rational speech.



Development Of Language And Language Use

Language is a complex communication system unique to humans, consisting of symbols organised by rules to express thoughts, feelings, and intentions.

Its absence would severely limit communication and access to others' internal worlds. Language acquisition is a fascinating journey from early vocalizations to fluent communication.


Meaning And Nature Of Language

Language can be defined as a system of symbols and rules used for communication. Its core characteristics are:


Development Of Language

Human language is more complex, creative, and spontaneous than communication systems learned by animals.

Children worldwide follow a remarkably regular pattern in language acquisition, although the rate varies individually.

Key stages of language development:

The acquisition of language involves both innate predispositions (nature) and environmental influences (nurture).

Most psychologists agree that both perspectives are needed to fully explain language development; innate biological readiness interacts with environmental learning experiences.


Bilingualism And Multilingualism (Box 8.3)

Bilingualism is proficiency in two languages, while multilingualism is proficiency in more than two.

Mother tongue is typically the language learned from infancy, often the language of the home, with which one feels an emotional connection. Individuals can have multiple mother tongues, especially in multilingual environments.

India is characterised by widespread grass-root multilingualism, where individuals commonly use more than one language in daily life.

Studies suggest that bilingualism and multilingualism have cognitive, linguistic, and academic benefits for children.


Language Use

Beyond knowing vocabulary and grammar (syntax), effective language use requires understanding the pragmatics of communication – knowing how to use language appropriately in different social contexts to achieve communicative goals (requesting, thanking, demanding).

Children often struggle with pragmatic aspects, sometimes using language that sounds like a demand instead of a polite request. They also learn conversational skills like turn-taking.

Effective language use involves not just grammatical correctness and meaningfulness but also contextual appropriateness to serve social functions.