Behavioral Psychology and Physiology

Mental Retardation (now termed Intellectual Disability or Intellectual Developmental Disorder) is characterized by significant limitations in both intellectual functioning and adaptive behavior. Dyslexia is a learning disability affecting reading, not an intellectual disability. ADHD is a neurodevelopmental disorder affecting attention and executive functioning. Autistic spectrum disorders involve social communication deficits and restricted behaviors, but many individuals with ASD have average or above-average intelligence, so it is not classified as an intellectual disability.

Expressive Language Disorder involves difficulties in verbal expression, and ALL these symptoms can occur: limited vocabulary and speech output (A), difficulty learning new words (B), and word-finding problems where the person struggles to retrieve the right word (C). Since the question asks 'may occur' and all three are valid symptoms, 'All of the above' is correct. This disorder affects language production while comprehension remains relatively intact.

Reading Disorder (Dyslexia) is diagnosed when reading achievement (accuracy, speed, comprehension) is significantly below what would be expected based on BOTH chronological age AND measured intelligence (IQ). This discrepancy-based definition ensures that reading difficulties are not simply due to low intelligence or inadequate schooling. Option C (schooling experience) is not part of the diagnostic criteria - the key is the discrepancy between actual reading ability and expected ability given age and cognitive capacity.

Dyscalculia is the specific learning disability affecting mathematical ability, characterized by difficulty understanding numbers, learning how to manipulate numbers, performing mathematical calculations, and fact retrieval. Dyslexia (B) affects reading. Dyspraxia (A) affects motor coordination. Dysphasia (D) affects language production and comprehension. The prefix 'dys-' means difficulty, and '-calculia' refers to calculation.

Retrieval is the final step in the memory process, which follows the sequence: Encoding (taking in information) → Storage (maintaining information) → Retrieval (accessing stored information). Storage comes before retrieval, encoding is the initial step, and attention is a prerequisite but not a step in the memory process itself.

Sensorimotor play involves infants exploring objects through direct physical interaction to understand their properties. Banging objects to produce sound is classic sensorimotor behavior. Language play involves vocal experimentation, pretend play involves imaginative scenarios, and attention-seeking behavior is goal-oriented communication.

Piaget proposed that young children's moral reasoning is heteronomous - governed by respect for authority and strict adherence to rules. They focus on consequences rather than intentions, and obedience to adults is paramount. Moral realism, not concern for others' feelings or intentions, characterizes this stage.

An unconditioned response (UCR) is an unlearned, innate reaction to an unconditioned stimulus. For example, salivating to food is a UCR - it occurs automatically without prior learning. The key is that neither the stimulus nor the response requires conditioning.

Classical conditioning mechanisms have been shown to influence diverse phenomena including immune responses (resistance to disease), allergic reactions, and sexual arousal. Through associative learning, neutral stimuli can trigger physiological responses across these domains, demonstrating conditioning's broad applicability beyond simple reflexes.

Declarative memory (also called explicit memory) is the part of long-term memory that stores factual information that can be consciously recalled, including both episodic (personal experiences) and semantic (general facts) memory. Procedural memory stores skills and how-to knowledge. Episodic and semantic are subtypes of declarative.

We use legs to go places far and near, up and down.

In classical conditioning, a neutral stimulus is something that initially does not trigger the response of interest. Before conditioning, Pavlov's bell was a neutral stimulus because it did not naturally cause dogs to salivate. It became a conditioned stimulus only after repeated pairing with food (unconditioned stimulus).

Memory is an active cognitive system that performs three key functions: receives information from the environment, organizes and encodes it, and stores it for later retrieval. This active processing view contrasts with passive models of memory as mere storage. Memory involves encoding, storage, and retrieval as dynamic processes.

The unconditioned stimulus (US) naturally and automatically triggers an unconditioned response (UR) without any prior learning or conditioning. This is a fundamental biological relationship - for example, food (US) naturally causes salivation (UR), or a puff of air (US) naturally causes eye blinking (UR). The US-UR relationship is innate and unlearned, distinguishing it from conditioned stimuli and responses that develop through association. Option A would require prior conditioning to create a conditioned response.

A neutral stimulus is defined as a stimulus that does not naturally or automatically evoke the unconditioned response (UR) before conditioning occurs. By definition, it must be neutral with respect to the response being studied - otherwise it would already be an unconditioned stimulus. The entire point of identifying a neutral stimulus is that it can be paired with the US to eventually become a conditioned stimulus (CS) that evokes a conditioned response (CR).