Module 9: Parietal Lobes and Attention

Anterior Parietal Lobe

Contains the primary somatosensory cortex.

Posterior Parietal Lobe

Involved in association and integration of sensory information.

Movement Guidance

Facilitates actions like reaching and grasping.

Sensorimotor Transformation

Converts body position to future movement plans.

Spatial Navigation

Ability to orient and move through space.

Astereognosis

Inability to recognize objects by touch.

Asomatognosia

Loss of awareness of body part ownership.

Dyscalculia

Difficulty with mathematical concepts and calculations.

Apraxia

Impaired ability to perform purposeful movements.

Optic Ataxia

Difficulty reaching for objects using visual guidance.

Simultaneous Extinction

Failure to perceive stimuli on one side when both sides stimulated.

Covert Attention

Focus on a target without direct eye contact.

Posner's Attention Paradigm

Method to study attention switching and response times.

Valid Cue

A cue that correctly predicts the target location.

Invalid Cue

A cue that incorrectly predicts the target location.

Contralateral Neglect

Inability to attend to stimuli on one side of space.

Hemi-inattention

Neglect of one side of the body or space.

Peripersonal Space

Space immediately surrounding the body.

Extra-personal Space

Space beyond immediate reach of the body.

Bimodal Neurons

Respond to both visual and tactile stimuli.

Balint's Syndrome

Triad of symptoms: simultagnosia, optic ataxia, oculomotor apraxia.

Simultanagnosia

Inability to recognize multiple objects simultaneously.

Oculomotor Apraxia

Difficulty in directing eye movements to objects.

Prism Adaptation

Adjustment of perception due to prism use.

Adaptive Approach

Rehabilitation strategy utilizing patient strengths.

Visual Memory

Ability to recall visual information.

Dorsal Stream

Visual pathway for action and spatial awareness.

Ventral Stream

Visual pathway for object recognition.

Attention and Memory Link

Attention is crucial for memory recall.